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Maths · Grade 2 · Set A
Big units, small units
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Remember: A smaller unit fits more times, so you count a bigger number. Pick a unit that fits the thing you measure.

Big and small units

1
This stick is 1 foot long. Each square is 1 inch. How many inches long is the stick?
2
A ribbon is 1 meter long. How many centimeters long is it?
3
A stick is 2 feet long. How many inches long is it?
4
A strip is 12 inches long. About how long is the crayon?
about 11 inchesabout 8 inchesabout 4 inches
5
Ava measures a crayon in inches. Ben measures the same crayon in centimeters. Whose number is bigger?
Ava's numberBen's numberThey are the same
6
A centimeter is longer than an inch.
TrueFalse
7
Measuring with a smaller unit gives a bigger number.
TrueFalse

Which unit and which tool?

8
🧸A teddy bear is about 30 ___ tall.
meterscentimeters
9
🚗A car is about 4 ___ long.
meterscentimeters
10
🪶A feather is about 6 ___ long.
feetinches
11
🚪A door is about 7 ___ tall.
feetinches
12
Which tool is best to measure a pencil?
a rulera meter stick
13
Join each length to the same length.
  1. 11 foot
  2. 22 feet
  3. 31 meter
  4. 42 meters
  • A24 inches
  • B12 inches
  • C100 centimeters
  • D200 centimeters
14
A stick is 1 foot, or 12 inches. Why is 12 a bigger number than 1?
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Answer key · Set A
Big units, small units
112 1 foot is 12 inches.
2100 1 meter is 100 centimeters.
324 Each foot is 12 inches. 12 + 12 = 24.
4about 4 inches The crayon covers about a third of the strip, and a third of 12 is 4.
5Ben's number A centimeter is shorter than an inch, so more centimeters fit along the crayon.
6False An inch is longer. About 2 centimeters fit in 1 inch.
7True A smaller unit fits more times, so you count more of them.
8centimeters 30 meters would be as tall as a building. A teddy bear is about 30 centimeters.
9meters A car is long. 4 centimeters is smaller than your finger.
10inches A feather is small. 6 feet would be taller than you.
11feet 7 inches is shorter than a pencil. A door is about 7 feet.
12a ruler A ruler fits a small thing. A meter stick is far too long.
131-B, 2-A, 3-C, 4-D
14Your own words: a grown-up reads it.
Mark each answer, count the right ones and write the score on the sheet.