Fractions, Decimals, & Percents

Question 1

1/8
3/8
5/8
7/8

Answer 1

.125
.375
.625
.875

Question 2

1/6
5/6

1/9

Answer 2

.167
.833

.111

Question 3

Percentages and decimals

Fractions

Answer 3

Add and subtract

Multiply and divide

Question 4

Multiply by a power of 10

Divide by a power of 10

Answer 4

Move decimal to the right

Move decimal to the left

Question 5

Decimal in the divisor

Answer 5

Shift the decimal point in both the divisor and the dividend to make divisor whole

Divide by whole numbers

Question 6

Negative powers of 10 reverse the process

Answer 6

Multiplication makes number smaller

Division makes numbers larger

Question 7

Adding the same number to the numerator and the denominator…..

Answer 7

Brings the number closer to 1

Question 8

When multiplying fractions…..

Answer 8

Simplify before multiplying

Question 9

Double decker fractions

Simplify quickly by

Answer 9

Multiplying both top and bottom by a common denominator

Question 10

You may spilt up the terms in the numerator but you may never….

Answer 10

Never spilt the terms of the denominator

Question 11

Multiplying by a very large and very small number

Answer 11

Move the decimals the same number of spaces but in opposite direction

.0003 x 40,000 = 12

Question 12

Covert percents into decimals by….

Answer 12

Moving decimal point two spaces to the left

Percent is always bigger than the decimal

Question 13

Percent

Answer 13

Divide by 100

Question 14

Of

Answer 14

Multiply

Question 15

Is

Answer 15

Equals

Question 16

What

Answer 16

Unknown value

Question 17

Percent change =

Answer 17

Change in value
———————
Original value

Question 18

New percent =

Answer 18

New value
——————
Original value

Question 19

Interest (formula)

Total amount =

Answer 19

P x (1+r/n)^nt

N=number of times per year
T=number of years

Question 20

Problem talks about a number but never supplies a real value………
(Unspecified values)

Answer 20

Use smart numbers