MATHS Flashcards
(223 cards)
1
Q
What are natural numbers?
A
All the positive numbers 1; 2; 3; 4; … are called the set of natural numbers
2
Q
What are whole numbers?
A
Natural numbers including 0
3
Q
What is often used to make calculation easier.
A
rounding off
4
Q
Addition means….
A
finding the sum (adding the numbers together)
5
Q
What is a factor?
A
A factor is a number that divides exactly into a whole number and leaves no
remainder.
6
Q
What is a prime number?
A
Prime numbers are numbers that have only two factors, themselves and 1. T
7
Q
What is a composite number?
A
Numbers with more than two factors are called composite numbers
8
Q
Is the number 1 a prime number or a composite number?
A
The number 1 is neither a prime number nor a composite number
9
Q
What does ‘ascending’ mean?
A
Smallest to biggest
10
Q
What does ‘descending’ mean?
A
Biggest to smallest
11
Q
< means
A
less than
12
Q
> means
A
more than
13
Q
What is the inverse operation of multiplication?
A
Division
14
Q
What is the inverse operation of addition?
A
Subtraction
15
Q
Adding numbers is called finding the….
A
Sum
16
Q
Subtracting numbers is called finding the….
A
Difference
17
Q
Multiplying numbers is called finding the….
A
Product
18
Q
Dividing numbers is called finding the ….
A
Quotient
19
Q
What is the commutative property of 2+7?
A
7+2
20
Q
What is the commutative property of 3x6
A
6x3
21
Q
What is the commutative property for 9 divided by 3?
A
Commutative property does not work with division
22
Q
What is the commutative property of 8 - 4?
A
Commutative property does not work with subtraction
23
Q
What is the associative property of 5 + ( 2 + 3)
A
(5 + 2) +3
24
Q
What is the associative property of 6 - (1 + 3 )
A
(6 - 1 ) +3
25
What is the associative property of 4 x (2 x 2)
(4 x2) x 2
26
What is 54 x 100
5400
27
What is the identity element for subtraction and addition?
0
Whether you add or subtract 0 from a number, the number never changes
28
What is the identity element of multiplication and division?
1
Whether you multiply or divide a number by 1, the number never changes
29
What are odd numbers?
Numbers that cannot be divided by 2
30
What are even numbers?
Numbers that can be divided by 2
31
What are the first 5 counting numbers? (Whole numbers)
0 1 2 3 4
32
What are the first 5 natural numbers?
1 2 3 4 5
33
What are the first 6 multiples of 10?
10
20
30
40
50
60
34
What are the factors of 10?
1, 2, 5, 10
35
What are the prime factors of 12?
2, 3,
36
Round off 171 643 to the nearest thousand
172 000
37
Round off 166.16 to the nearest whole number
166
38
Use your knowledge about distributive property to solve:
29 x 4 + 29 x 7 + 29 x 10
(30 x 4 - 4) + (30 x 7 - 7) + (30 x 10 - 10)
116 + 203 + 290
500 + 100 + 9
609
39
Use your knowledge about distributive property to solve:
450 ÷ 10 + 680 ÷ 10
450 / 10 + 680 / 10
= (450 + 680) /10
= 1130 / 10
= 113
40
Use your knowledge about distributive property to solve:
50 x 369
50 x 369
= (100 x 369) / 2
= 36900 / 2
= 15 000 + 3000 + 450
= 18 450
41
True or false?
8 + 7 = 7 + 8
True
42
True or False?
10 x (7 +3 +4) = (10 x 7) + (10 x 3) + (10 x 4)
True
43
True or False?
(2 500 ÷ 20) ÷ 5 = 2 500 ÷ (20 ÷ 5)
False
(2500 / 20) / 5 = 125 / 5 = 25
2500 / (20/5) = 2500 / 4 = 625
44
A grocer buys 480 trays of oranges. He has to share the oranges equally
between 20 clients.
What is your equation?
480 / 20
480 / 10 / 2
48 / 2
24
45
Mr Padaychee owns a clothing shop. He has 25 designer tops which he sells for
R69 each. Assuming Mr Padaychee sells all of the tops,
What is your equation?
25 x 69
25 x 70 - 25
25 x 10 x 7 -25
250 x 7 - 25
250 x 10 - (250 x 3) - 25
2500 - 750 - 25
2500 - 775
2000 - 275
R 1725.00
46
Use the HORIZONTAL METHOD.
a) 456 +350 + 239
400 + 300 + 200 +50 + 50 + 30 + 6 + 9
900 + 100 + 30 + 10 + 5
1045
47
Use the HORIZONTAL METHOD.
a) 1 226 x 82
(1000 x 80) + (200 x 80) + (20x 80) + (6 x 80) + 2000 + 400 + 40 + 10 + 2
80 000 + 10 000 + 6000 + 1000 + 600 + 400 + 80 + 2000 + 400 +40 +10 + 2
90 000 + 9000 + 1000 + 400 + 100 + 30 + 2
100 532
48
What is the order of operations?
Brackets
Operations
Division
Multiplication
Addition
Subtraction
49
Calculate the following:
2(5 + 2) - (3 / 3) x 2 - 4 + 3 x 2 x 10 / (6 - 1)
(2 x 7) - (1 x 2) - 4 + (3 x 2 x 10 ) / 5
14 - 2 - 4 + (60 / 5)
8 + 12
20
50
True or False?
16 + 4 x 5 = 100
False
16 + 4 x5
= 16 + (4 x 5)
= 16 + 20
= 36
51
What is the product of 3 and 2?
6
52
What does HCF stand for?
Highest Common Factor
53
What does LCM stand for?
Lowest Common Multiple
54
What is the HCF of 12 and 20
Factors of 12 are: 1, 2, 3, 4, 6, 12
Factors of 20 are: 1, 2, 4, 5, 10, 20
HCF is 4
55
What is the LCM of 6 and 8?
Multiples of 6 are: 6, 12, 18, 24, 30, 36, 42.....
Multiples of 8 are: 8, 16, 24.....
LCM is 24
56
A comparison between two numbers or two quantities that are measured in the
same units. For example: The ratio of the original price of the coat for the sale price is
R300: R210. We simplify this to 10 : 7
What is this called?
The Ratio
57
What is the Ratio for 250ml of juice concentrate for every litre of water?
250ml : 1L
= 250ml : 1000ml
= 25 : 100
= 5 : 20
= 1 : 4
58
What do we call the difference between the selling price added and the cost price of an
article.
The Profit
59
If It costs me R 20 to make a dozen cupcakes and I sell each cup cake for R5
What is my profit?
(5 x 12) - 20
= 60 - 20
= 40
My profit is R40
60
What is the equation to work out profit?
Selling Price - Cost Price = Profit
or
Selling Price - Expenses = Profit
61
What is an easier way to work out the HCF of bigger numbers?
Using Prime Factorization
62
Using Prime Factorization, work out the HCF of 60 and 72
60 = 3 x 20 = 3 x 5 x 4 = 3 x 5 x 2 x 2
72 = 2 x 36 = 2 x 3 x 12 = 2 x 3 x 3 x 4 = 2 x 3 x 3 x 2 x 2
2 x 2 x 3 x 5
2 x 2 x 2 x 3 x 3
2 x 2 x 3 = 12
The HCF is 12
63
What is an easier to work out what the LCM of bigger numbers is?
By Multiplying all the Prime factors that either each number has.
64
Using Prime Factorization, work out the LCM of 60 and 72
60 = 2 x 30 = 2 x 2 x 15 = 2 x 2 x 3 x 5
72 = 2 x 36 = 2 x 2 x 18 = 2 x 2 x 2 x 9 = 2 x 2 x 2 x 3 x 3
60 = 2 x 2 x 3 x 5
72 = 2 x 2 x 2 x 3 x 3
2 x 2 x 2 x 3 x 3 x 5
= 8 x 9 x 5
= 72 x 5
= 360
65
Two lighthouses can be seen from the top of a hill.
The first flashes once every 8 seconds, and the other flashes once every 15 seconds.
If they flash at the same time, how long will it be until they flash at the same time
again?
Find the LCM of 8 and 15
8 = 2 x 4 = 2 x 2 x 2
15 = 3 x 5
2 x 2 x 2 x 3 x 5
= 8 x 3 x 5
= 24 x 5
= 120
They will at the same time after 120 seconds / 2 minutes
66
Find the HCF of 30 and 24 using Prime Factorization
30 = 2 x 15 = 2 x 3 x 5
24 = 2 x 12 = 2 x 3 x 4 = 2 x 3 x 2 x 2
2 x 3 x 5
2 x 2 x 2 x 3
2 x 3 = 6
HCF = 6
67
Using Prime Factorization, find the LCM of 50 and 60
50 = 2 x 25 = 2 x 5 x 5
60 = 3 x 20 = 3 x 5 x 4 = 3 x 5 x 2 x 2
2 x 5 x 5 x 3 x 2
= 10 x 15 x 2
= 300
The LCM is 300
68
Using Prime Factorization, find the HCF of 26 and 45
26 = 2 x 13
45 = 5 x 9 = 5 x 3 x 3
26 and 45 have no prime factors in common
so
The HCF is 1
69
Using Prime Factorization, find the LCM of 26 and 45
26 = 2 x 13
45 = 5 x 9 = 5 x 3 x 3
2 x 13
3 x 3 x 5
2 x 3 x 3 x 5 x 13
= 18 x 5 x 13
= 90 x 13
= 1170
70
A number that shows how many times a base is used as a factor is called an....
Exponent
71
What are the first 5 square numbers?
1 x 1 = 1
2 x 2 = 4
3 x 3 = 9
4 x 4 = 16
5 x 5 = 25
The first 5 square numbers are:
1, 4, 9, 16, 25
72
What are the first 5 cube numbers?
1 x 1 x 1 = 1
2 x 2 x 2 = 8
3 x 3 x 3 = 27
4 x 4 x 4 = 64
5 x 5 x 5 = 125
The first 5 cube numbers are:
1, 8, 27, 64, 125
73
A base together with an exponent is called a .....
Power
74
What is 2 to the power of 5?
2 x 2 x 2 x 2 x 2
= 4 x 4 x 2
= 16 x 2
= 32
75
the inverse operation of squaring a number is called....
The square root
76
What is the square root of 25?
5 x 5 = 25
so the square root of 25
is 5
77
√9 =
=3
because 3 x 3 = 9
78
What is the cube root of 8?
= 2
because 2 x 2 x 2 = 8
79
If you multiply a number by itself the answer is .......
a square number
80
If you multiply a number by itself two times the answer is ......
a cube number
81
Write 8 in exponent form
2 (cubed) *write it down correctly
82
Write 9 in exponent form
2 (squared) *write it down correctly
83
5 squared is read as ...
and calculated as .....
5 to the power of 2
5 x 5 = 25
84
5 cubed is read as....
and calculated as....
5 to the power of 3
5 x 5 x 5 = 125
85
A base together with a power is called....
An exponent
86
Write the following in exponential form
2x2x2x2
2 to the power of 4
Write it down correctly
87
What is the square of 5?
25
(5 x 5 = 25)
88
What is the cube root of 8000?
20
(20 x 20 x 20 = 8000)
89
What is the cube of 1?
1
(1 x 1 x 1 =1)
90
Use prime factors to write numbers in exponential form
72
72 = 2 x 36 = 2 x 2 x 18 = 2 x 2 x 2 x 9 = 2 x 2 x 2 x 3 x 3
= 2 cubed x 3 sq
91
Use prime factors to write numbers in exponential form
125
125 = 5 x 25 = 5 x 5 x 5
= 5 cubed
92
Use prime factors to write numbers in exponential form
256
256 = 2 x 128 = 2 x 2 x 64 = 2 x 2 x 2 x 32 = 2 x 2 x 2 x 2 x 16
= 2 x 2 x 2 x 2 x 2 x 8
= 2 x 2 x 2 x 2 x 2 x 2 x 4
= 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2
= 2 to the power of 8
93
Use prime factors to write numbers in exponential form
588
588 = 2 x 294 = 2 x 2 x 147 = 2 x 2 x 7 x 21 = 2 x 2 x 7 x 3 x 7
= 2 sq x 3 x 7 sq
94
use the exponential form of numbers to calculate the square root of
81
81 = 9 x 9
= 9
95
use the exponential form of numbers to calculate the cube root of:
(2 to the power of 6) x (3 cubed)
( 2 x 2 x 2 x 2 x 2 x 2 ) x ( 3 x 3 x 3)
= ( 4 x 4 x 4) x ( 3 x 3 x 3)
= 4 x 3
= 12
96
The square root of a number multiplied by itself is equal to
the number
EG. the square root of 25 is 5
Multiplied by 5
= 25
97
Calculate (7+3) squared
(7+3) squared
= 10 squared
= 10 x 10
= 100
98
Calculate (7-3)cubed
(7-3) cubed
=4 cubed
= 4 x 4 x 4
= 16 x 4 or 16 x 2 x 2
= 64
99
What is the square root of (16+9)
(16 + 9) = 25
5 x 5 = 25
The sq root of 25 = 5
100
What is the square root of (16 x 9)
16 x 9 = ( 4 x 4 ) x ( 3 x 3)
Sq root is 4 x 3
= 12
101
Calculate 5squared + 5 - 2cubed
(5 x 5) + 5 - (2 x 2 x 2)
25 + 5 - 8
30 - 8
22
102
Calculate 3squared - the cube root of 27 + 12squared
( 3 x 3 ) - ( 3 ) + ( 12 x 12)
= 9 - 3 + 144
= 6 + 144
= 150
103
calculate:
2 cubed + 2 to the power of 4 + 2 to the power of 5
(2x2x2) + (2x2x2x2) + (2x2x2x2x2)
8 + 16 + 32
=56
104
Calculate:
(2 to the power of 5) ÷ (2 cubed) ÷ (2 to the power of 1)
(2x2x2x2x2) / (2x2x2) / 2
32 / 8 / 2
4 /2
= 2
105
Simplify the ratio
24 : 60 : 84
Prime Factors of 24: 2x12 = 2 x (2x6) = 2 x (2x2x3)
Prime Factors of 60: 2x30 = 2 x (2x15) = 2 x (2x2x3x5)
Prime Factors of 84: 2x44 = 2 x (2x22) = 2 x (2x2x2x11)
2x2x3 = 12
HCF = 12
24 /12 = 2
60/12 = 5
84/12 = 7
Simplified Ratio is:
2:5:7
106
Simplify the Ratio:
40 m : 2km
40 m : 2km = 40m: 2000m
4:200
2:100
1:50
107
A chef bakes a dozen cookies in 20 minutes. How many cookies does he bake in 3
hours?
Calculate the Rate
12 cookies per 20 minutes
20 x 3 = 60 minutes = 1 hour
12 x 3 = 36 cookies per hour
36 x 3 = 108 cookies in 3 hours
108
A butcher sells 15 kg of mince for R900,00. How much does the mince cost per
kilogram?
What is the price rate of mince /kg
900 / 15
R60 per kg
109
Share R 2 250,00 in the ratio 3:2:1
2 250 / 6
375 x 6 = R 2 250
3 x 375 = R 1 125
2 x 375 = R 750
1 x 375 = R 375
R 1 125 : R 750 : R 375
110
Divide R 200,00 between you and your best friend in the ratio 3:2
There are 5 parts (3:2) 3+2=5
1 part is R 200 / 5 = R 40
R 40 x 3 = R 120
R 40 x 2 = R 80
I get R 120 and my friend gets R 80
111
Share an inheritance of R 50 000,00 between five children in the following ratio
7:9:3:2:4
7 + 9 + 3 + 2 + 4 = 25 parts
R 50 000.00 divided by 25 parts = R 2 000 per part
a) R 2 000 x 7 = R 14 000
b) R 2 000 x 9 = R 18 000
c) R 2 000 x 3 = R 6 000
d) R 2 000 x 2 = R 4 000
e) R 2 000 x 4 = R 8 000
112
Increase R 1 500 by 25%
(1500 x 25) / 100 + 1500
37 500 / 100 = 375
1500 + 375 = R 1 875
113
Decrease R 3 000 by 45%
3000 - (3000 x 45)/100
3000 - 135000 / 100
3000 - 1350
= R 1 650.00
114
When calculating VAT, what % of the article’s value must be added to the cost of the
article ?
15%
115
Calculate the VAT to be added on an article costing R 500
500 x 15 / 100 + 500
(500 x 10 + 500 x 5) / 100 + 500
(5000 + 2500) / 100 +500
7500 / 100 +500
75 + 500
= R 575
The Vat to be added on is R 75
116
What is added to the value of an article, normally when credit is given and the buyer
cannot pay the full amount.
Interest
117
Calculate what you will pay for an item costing R 250,00 if a discount of 15% is given.
250 - 250 x 15 / 100
250 - (250 x 10 + 250 x 5) / 100
250 - (2 500 + 1 250) / 100
250 - 3750 / 100
250 - 37.5
R 212.50
118
What is the LCD stand for?
Lowest Common Denominator
119
Use the lowest common denominator (LCD) and equivalent fractions,
making each fraction have the same denominators.
1/2
1/3
1/6
2/3
3/4
Denominators are:
2, 3, 6, 3, 4
The LCD is 12
Multiply all numerators and denominators by X to make the denominators 12
1/2 x 6/6 = 6/12
1/3 x 4/4 = 4/12
1/6 x 2/2 = 3/12
2/3 x 4/4 = 8/12
3/4 x 3/3 = 9/12
120
What are the following fractions in ascending order:
1/2
1/3
1/6
2/3
3/4
1/6
1/3
1/2
2/3
3/4
121
Convert 1/5 into a decimal fraction
1/5 = 2/10
= 0.2
122
Convert 0.65 into a common fraction
0.65 = 65/100
Simplify - (65 / 5)/(100/5)
= 13/20
123
Convert 0.8 into a common fraction
0.8 = 8/10
Simplify
(8/10) / (2/2)
= 4/5
124
Convert 1.25 into an improper fraction
1.25 = 125/100
(125/100) / (25/25)
= 5/4
Note: improper fraction the numerator is more than the denominator
125
Convert 3.4 into a mixed fraction
3.4 = 34/10
= 30 + 4/10
Simplify
30 + (4/10) / (2/2)
30 2/5
126
Convert 18/5 into a decimal fraction
18/5 = 3 3/5
= 3 (3/5) x 2/2)
= 3 6/10
= 3.6
127
Convert 7/2 into a mixed fraction
3 1/2
128
Convert 8/10 into a percentage
100 / 10 x 8
= 10 x 8
= 80%
129
Convert 3/4 into a percentage
100 / 4 x 3
= 25 x 3
= 75%
130
Convert 1/1 into a percentage
100%
131
Convert 0.223 into a percentage
22.3%
132
Which fraction is more?
1/3 or 4/10
1/3 x 10/10 = 10/30
4/10 x 3/3 = 12/30
4/10 is more than 1/3
133
Which fraction is less?
4/7 or 2/3
4/7 x 3/3 = 12/21
2/3 x 7/7 = 14/21
4/7 is less than 2/3
134
Which fraction is more?
15/30 or 12/24
Both fractions are equal
135
James wants to buy a new pair of basketball shoes.
Two shops stock the shoes, and he is very lucky because both shops are having sales on the shoes he wants.
The original price of the shoes is R500. One shop offers a saving of
2/3 off the price, the other offers a saving of
7/12 off the price. Which store offers the best saving?
Work out the answer
136
What is 1/3 + 3 2/3 + 3/3
Write your answer as a improper fraction
1/3 + 3/1 + 2/3 + 3/3
1/3 + 9/3 + 2/3 + 3/3
= 15/3
137
what is 5.2 + 1.1 + 0.6?
Write your number as a mixed fraction in the simplest form
Work out the answer
138
What is 2/3 + 2 3/5 + 7/10
Write your answer in the simplest form
Work out your answer
139
What is 3 2/3 - 2 1/2
Write your answer in the simplest form as a fraction
Write your answer a a whole number with decimal
Work out your answer
140
When multiplying fractions, what is the rule?
Numerators get multiplied with numerators and denominators get multiplied with
denominators.
141
Calculate:
2/3 x 4/5
Write your answer as a fraction in the simplest form
Write your answer in decimal form
Work out your answer
142
What is 8/10 x 1/2
Write your answer as a fraction in the simplest form
Write your answer in decimal form
Work out the answer
143
What is the rule for dividing fractions
Numerator x Denominator = Numerator
Denominator x Numerator = Denominator
144
Calculate:
(1 4/5 / 2/3)
Work out your answer
145
Calculate:
(1/2) / (1/3)
Work out your answer
146
Calculate:
3/2 x 2
Work out your answer
147
Calculate:
(2/9) / 3
Work out your answer
148
What is 32 % of R250?
Calculate
149
At the beginning of 2015, bread cost R 10, 00 per loaf. 1 year later, the same loaf of
bread cost R 12, 00. By what percentage did the price of bread increase?
Calculate
150
This is a number that has a decimal comma that is used to separate whole
parts of the number, from the parts that are represented over a multiple of 10
Decimal Number
151
The position of a digit to the right of a decimal point. Each successive position
to the right has a denominator of an increased power of 10.
Decimal Place
152
Reducing the number of decimal places according to the instruction or the
convention that is being worked with. To round off correctly, look at the first
digit that will not be used in the final answer; if it is 5 or greater then we
round up; if it is 4 or less we round down.
Rounding Off
153
An improper fraction written partly as a whole number and partly as a proper
fraction
Mixed Number / Mixed Fraction
154
0,31425
Rounded to 2 decimal places:
0.31
155
0,31425
Rounded up to 4 decimal places:
0.3143
156
Compare 0,534 and 0,552
0.534 is less than 0.552
157
3,2 + 1,45
Calculate
158
4,291 + 5,64
Calculate
159
5, 12 – 2, 452
Calculate
160
3,21 × 10
3.21
161
4.192 x 100
= 419.2
162
4, 62 x 3
Calculate
163
2, 43 x 0,6
Calculate
164
34, 21 ÷ 100
0.3421
165
34, 21 ÷ 1000
0.03421
166
48, 24 ÷ 3
Calculate
167
0, 62 ÷ 0, 2
Calculate
168
I sold 4.5 cakes at R 20.40 per cake.
How much money did I make?
Calculate
169
The number/value that was chosen to replace the variable in an expression
Input
170
is dependent on the input – it is the answer once the operation
has been performed according to the expression given.
OUtput
171
A mathematical sentence built from an algebraic expression using an equal
sign
Equation
172
A diagram representing a sequence of movements to be performed on a
given value
Flow Diagram
173
A letter used to replace a number that can represent a variety of different
values
Variable
174
A value that remains the same and does not vary
Constant
175
Five primary schools each get 5 new learners in Grade 7
What would the Input be?
What is the rule?
What would the output be?
The original number of learners in each school would be the INPUT
The Rule would be "+5"
The new number of learners in each school would be the OUTPUT
176
How many rules would there be in a flow diagram with multiple operations:
However many operations are in the flow diagram
177
The name given to flat shapes that occupy a space and thus have area that
can be calculated.
Two-Dimensional (2-D)
178
A polygon whose sides are all the same length, and whose angles are all the
same size.
Regular Polygon
179
A polygon that does not have sides that are the same length, nor are the
angles the same size
Irregular Polygon
180
A shape that is equilateral has all its sides the same length.
Equilateral
181
The distance around a polygon.
Perimeter
182
An expression or equation that is used to express the relationship between
certain quantities.
Formula
183
The surface of a shape or object. It can also be defined as the number of
square units that a shape covers.
Area
184
An irregular shape that is made up of parts or whole components of other
shapes.
Composite Shape
185
How does one find the perimeter of a square?
The length of all 4 sides are added together
186
What is the perimeter of a square with sides that are 2.5cm?
2.5 + 2.5 + 2.5 + 2.5
= 10cm
187
How does one find the area of a square or a rectangle?
By multiplying the length by the breadth
188
Work out the area of a room where the
Length is 2.5m and the breadth is 1.2m
Calculate
189
How does one work out the perimeter of a triangle?
The length of all 3 sides are added together
190
How does one calculate the area of a triangle?
the base is multiplied by the perpendicular height then
multiplied by half
191
Work out the area of some triangles.
Calculate
192
When dealing with more unusual shapes, how would one work out the area?
they need to broken up into one or more of
the more familiar shapes in order to find the area or the perimeter of them
193
Work out the area of an unusual shape
Calculate
194
Convert 7cm to mm
x10
70mm
195
convert 85mm into cm
/ 10
8.5cm
196
convert 30cm into m
/ 100
0.3m
197
convert 156mm into m
/ 1000
0.0156m
198
convert 153m into km
/1000
0.153km
199
convert 950 000 cm to km
/ 100 / 1000
/ 100 000
9.5km
200
What is the area of a square with sides 100cm x 100cm
1m sq
201
What is the area of a room 200cm x 200cm?
4m sq
202
What is a cube?
A 3D figure with 6 identical square faces
203
A solid object with 2 identical ends and flat sides. The cross section is the same
all along the length
A Prism / Polyhedron
204
A prism made of 6 rectangular faces
A rectangular Prism
205
A special type of polyhedron. It has a polygon base and the other faces are
triangles that meet at an apex
Pyramid
206
These are figures that do not lie in a plane. The figures have length, breadth and
height or depth.
3 Dimensional (3-D)
207
The flat surface or side of a solid shape
Face
208
the intersections of the faces of a solid figure
Edge
209
The corner of a solid shape. The point where the edges meet
Vertex
210
The highest point or peak of a pyramid.
Apex
211
The sum of the areas of each of the faces of a 3D shape
Surface Area
212
The amount of space contained inside a shape. That means volume is the space
that can be filled with other items
Volume
213
What is volume measured in
Cubic units
214
What is area measured in
Square Units
215
The amount of liquid that a 3D shape can hold. It is measured in ml or l
Capacity
216
A 2D pattern that folds to form a 3D shape. It is helpful when calculating
surface area as it makes all faces visible, so that they are not omitted from the
calculation.
Net
217
Consider a box:
The length is 10cm, the breadth is 4cm and the height is 7cm.
What do we call this 3-d Object?
A rectangular Prism
218
Consider a box:
The length is 10cm, the breadth is 4cm and the height is 7cm.
Work out the surface area
Calculate
219
What is the formula to work out the volume of a cube or rectangular prism?
L x B x H
220
Convert the following volumes to the capacity:
1 cm3
1000 cm3
1 m3
1cm cubed = 1ml
1000 cm cubed = 1L
1m cubed = 1 kl
221
Find how many litres of water the tank can hold.
The dimensions are 110cm x 45 cm x 60cm high
Calculate
222
Practice Division equations
Calculate
223
Practice Multiplication Equations
Calculate
