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Maths · Grade 6 · Set C
Changing Units, One Step More
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C
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Goal: 15 min
Score/ 12
Remember: The fact is a column. Do the same to both rows, and let the units cancel.

One fact, one column

1
1 km is 1000 m. How many meters is 3.5 km? Answer:
2
1 gal is 4 qt. How many quarts is 6.5 gal? Answer:
3
1000 g is 1 kg. How many kilograms is 4500 g? Answer:
4
Look at the ruler. The crayon is a whole number of centimeters long. How many millimeters long is it? There are 10 mm in 1 cm. Answer:
5
Which is the same length as 4.2 m?
42 cm4200 cm420 cm0.42 cm

Two steps, and rates

6
A hike is 3 km long. 1 km is 1000 m, and 1 m is 100 cm. Use the table to find how many centimeters the hike is. Answer:
7
A machine fills 7 bottles each minute. How many bottles does it fill in 1 hour? Answer:
8
A fountain uses 1800 liters of water in 1 hour. How many liters does it use each minute? Answer:
9
A car goes 90 kilometers each hour. How many kilometers does it go in 2.5 hours? Answer:
10
Join the lengths and amounts that are equal.
  1. 12.5 m
  2. 20.5 kg
  3. 33000 mL
  4. 490 mm
  • A250 cm
  • B500 g
  • C3 L
  • D9 cm

Stretch

11
2 hours is 120 minutes, so 3 hours is 360 minutes.
TrueFalse
12
A rope is 138 inches long. 12 in is 1 ft. How many feet long is the rope? Answer:
13
Write how you could change 3.5 hours to minutes. Write the fact you use.
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Answer key · Set C
Changing Units, One Step More
13500 3.5 × 1000 = 3500.
226 6.5 × 4 = 26.
34.5 4500 ÷ 1000 = 4.5.
4120 The crayon is 12 cm. 12 × 10 = 120 mm.
5420 cm 1 m is 100 cm. 4.2 × 100 = 420 cm.
6300000 3 km is 3000 m. Each meter is 100 cm, so 3000 × 100 = 300,000 cm.
7420 1 hour is 60 minutes. 7 × 60 = 420.
830 1 hour is 60 minutes. 60 becomes 1 by dividing by 60, so 1800 ÷ 60 = 30.
9225 2.5 × 90 = 225.
101-A, 2-B, 3-C, 4-D Use the fact: 1 m = 100 cm, 1 kg = 1000 g, 1 L = 1000 mL, 1 cm = 10 mm.
11False 1 hour is 60 minutes, so 3 hours is 3 × 60 = 180 minutes. 360 minutes is 6 hours.
1211.5 138 ÷ 12 = 11.5.
13Your own words: a grown-up reads it.
Mark each answer, count the right ones and write the score on the sheet.