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Maths · Grade 6 · Set A
Changing the Unit
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Goal: 15 min
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Remember: The fact is a column. Do the same to both rows, and let the units cancel.

One fact, one column

1
1 kg is 1000 g. How many grams is 9 kg? Answer:
2
Look at the ruler. The pencil is a whole number of centimeters long. How many millimeters long is it? There are 10 mm in 1 cm. Answer:
3
1 yd is 3 ft. How many feet is 2 yd? Answer:
4
Which fact goes in the first column to change feet to inches?
1 in = 12 ft1 ft = 10 in1 ft = 12 in1 ft = 3 in
5
3 ft is 30 in.
TrueFalse

Going down, and rates

6
10 mm is 1 cm. How many centimeters is 80 mm? Answer:
7
Join the lengths and amounts that are equal.
  1. 12 m
  2. 23 km
  3. 35 cm
  4. 46 L
  • A3000 m
  • B200 cm
  • C6000 mL
  • D50 mm
8
16 oz is 1 lb. How many pounds is 136 oz? Answer:
9
Ava's tap drips 480 milliliters each minute. How many milliliters each second? Answer:
10
Ava's tap drips 4.5 milliliters each second. How many milliliters each minute? Answer:

Stretch

11
5 ft × 12 in per ft. Which unit is left in the answer?
ftinft × inno unit
12
A rope is 5.5 feet long. 1 foot is 12 inches. How many inches long is the rope? Answer:
13
Why does the number get bigger when you change feet to inches?
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Answer key · Set A
Changing the Unit
19000 1 becomes 9 by multiplying by 9. Do the same to 1000: 9000.
260 The pencil is 6 cm. 6 × 10 = 60 mm.
36 2 × 3 = 6.
41 ft = 12 in There are 12 inches in 1 foot.
5False 3 × 12 = 36, so 3 ft is 36 in.
68 10 becomes 80 by multiplying by 8. 1 × 8 = 8 cm.
71-B, 2-A, 3-D, 4-C Use the fact: 1 m = 100 cm, 1 km = 1000 m, 1 cm = 10 mm, 1 L = 1000 mL.
88.5 136 ÷ 16 = 8.5.
98 1 minute is 60 seconds. 60 becomes 1 by dividing by 60, so 480 ÷ 60 = 8.
10270 1 minute is 60 seconds. 4.5 × 60 = 270.
11in The feet cancel, because one is on top and one is on the bottom. Inches are left.
1266 5.5 × 12 = 66.
13Your own words: a grown-up reads it.
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