Chap 13 - measurement

Question 1

units for length from mm to km (1D)

Answer 1

10mm = 1 cm
100cm = 1 m
1000m = 1km

Question 2

units for mass from mg to tons

Answer 2

1000mg = 1g
1000g = 1 kg
1000kg = 1 ton

Question 3

units for capacity from ml to L (3D)

Answer 3

1ml = 1 cm^3
1m^3 = 1000L
10ml = 1cl
100cl = 1L

Question 4

units for area from mm^2 to hectare (2D)

Answer 4

100 mm^2 = 1cm^2
10 000cm^2 = 1m^2
1 000 000m^2 = 1km^2
100ha = 1km^2

Question 5

units for volume from mm^3 to m^3 (3D)

Answer 5

1 000mm^3 = 1cm^3
1 000 000cm^3 = 1m^3

Question 6

note: if you have to convert units at end, convert units at start before solving

Question 7

note: use timeline when dealing with time

Question 8

note: maximum = upper bound, minimum = lower bound

Question 9

how to find upper/ lower bounds

Answer 9

-plus/ minus 5 from the next dp of the last dp
-nearest___ x 0.5

Question 10

how to do a+b, upper & lower bounds

Answer 10

-Ua + Ub
-La + Lb

Question 11

how to do axb, upper & lower bounds

Answer 11

-Ua x Ub
-La x Lb

Question 12

how to do a-b, upper & lower bounds

Answer 12

-Ua - Ub
-La - Lb

Question 13

how to do a/b, upper & lower bounds

Answer 13

-Ua / Ub
-La / Lb

Question 14

how to do a+b/b, upper & lower bounds

Answer 14

-Ua + Ub / Ub
-La + Lb/ Lb

Question 15

note: nearest ___ (the no. is to) x 0.5
-is the Upper/ lower bound no.s is from

Question 16

note:
-1cm^3 = 1ml
-1m^3 = 1000L