Measures and time · Ages 6–7
Centimetres worksheet
Part of: Length and centimetres
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Centimetres worksheet
Measures and time · Ages 6–7
Numsprite
numsprite.com
Name:Date:Score:／48
Write each answer in the space. For word problems, show your working and write a sentence answer.
Part A: Working out and filling in (2 marks each)
1.How many centimetres long is the strip?
Answer:
2.The strip doesn't start at 0. How many centimetres long is it?
Answer:
3.A 🧊 is about 2 cm long. A bookmark is about as long as 3 of them. About how many centimetres long is the bookmark?
Answer:
4.A 🍪 is about 5 cm long. A bookmark is about as long as 5 of them. About how many centimetres long is the bookmark?
Answer:
Part B: Choose, or true or false (2 marks each)
5.Which of these is about 1 cm long?
- A. A pencil
- B. A long ruler
- C. An eraser
- D. The width of a fingernail
Choose the right answer
Answer:
6.Which of these is about 15 cm long?
- A. An eraser
- B. A long ruler
- C. A pencil
- D. The width of a fingernail
Choose the right answer
Answer:
7.Which of these is about 30 cm long?
- A. An eraser
- B. A pencil
- C. The width of a fingernail
- D. A long ruler
Choose the right answer
Answer:
8.The strip is 6 cm long.
True or false?
Answer:
9.Which strip is 5 cm long?
- A
- B
- C
- D
Choose the right picture
Answer:
10.The strip is 9 cm long.
True or false?
Answer:
11.Which strip is 7 cm long?
- A
- B
- C
- D
Choose the right picture
Answer:
12.Which strip is 8 cm long?
- A
- B
- C
- D
Choose the right picture
Answer:
Part C: Word problems (4 marks each)
13.Ming measures a string: one end is at 5 on the ruler and the other at 11. How long is the string?
Working:
Answer:
14.Chi-keung joins a ribbon 12 cm long end to end with one 6 cm long. How long are they together?
Working:
Answer:
15.Chi-keung's pencil is 9 cm long and Ming's is 7 cm. How much longer is Chi-keung's pencil?
Working:
Answer:
16.May measures a string: one end is at 4 on the ruler and the other at 9. How long is the string?
Working:
Answer:
17.Tsz-ching's pencil is 16 cm long and Ka-yee's is 12 cm. How much longer is Tsz-ching's pencil?
Working:
Answer:
18.Ming joins a ribbon 8 cm long end to end with one 37 cm long. How long are they together?
Working:
Answer:
Show the answers and working
Centimetres worksheet: Answers and working
Part A: Working out and filling in
1. 5 cm
Check that one end of the strip is on 0, then read the number the other end reaches.
One end is on 0 and the other on 5: 5 cm.
2. 9 cm
The strip doesn't start at 0. First read the numbers each end lines up with.
One end is at 3 and the other at 12: 12 − 3 = 9 cm.
3. 6 cm
Each 🧊 is about 2 cm, and the bookmark is 3 of them. Count in 2s, 3 times.
Count in 2s, 3 times: about 6 cm.
4. 25 cm
Each 🍪 is about 5 cm, and the bookmark is 5 of them. Count in 5s, 5 times.
Count in 5s, 5 times: about 25 cm.
Part B: Choose, or true or false
5. D. The width of a fingernail
Think how long 1 cm and 15 cm roughly are, then compare each thing with that.
Remember a few lengths: a fingernail is about 1 cm wide, an eraser about 4 cm, a pencil about 15 cm, a long ruler about 30 cm.
6. C. A pencil
Think how long 1 cm and 15 cm roughly are, then compare each thing with that.
Remember a few lengths: a fingernail is about 1 cm wide, an eraser about 4 cm, a pencil about 15 cm, a long ruler about 30 cm.
7. D. A long ruler
Think how long 1 cm and 15 cm roughly are, then compare each thing with that.
Remember a few lengths: a fingernail is about 1 cm wide, an eraser about 4 cm, a pencil about 15 cm, a long ruler about 30 cm.
8. False
The strip's left end is at 1, not 0. Read both ends, then take one from the other.
The strip runs from 1 to 6, not from 0: 6 − 1 = 5 cm.
9. C
Check each strip: does it start at 0? If not, take the left end's number from the right end's.
For each, take the left end's number from the right end's: the one that comes to 5 is the answer.
10. False
The strip's left end is at 2, not 0. Read both ends, then take one from the other.
The strip runs from 2 to 9, not from 0: 9 − 2 = 7 cm.
11. C
Check each strip: does it start at 0? If not, take the left end's number from the right end's.
For each, take the left end's number from the right end's: the one that comes to 7 is the answer.
12. C
Check each strip: does it start at 0? If not, take the left end's number from the right end's.
For each, take the left end's number from the right end's: the one that comes to 8 is the answer.
Part C: Word problems
Marking: 2 for the working, 1 for the answer, 1 for the sentence.
13. 6 cm
The string doesn't start at 0. Take the 5 at one end from the 11 at the other.
It doesn't start at 0, so subtract: 11 − 5 = 6 cm.
14. 18 cm
Joined end to end, the two ribbons' lengths add together.
End to end, the lengths add: 12 + 6 = 18 cm.
15. 2 cm
“How much longer” is comparing: take the shorter from the longer, 9 − 7.
9 − 7 = 2 cm.
16. 5 cm
The string doesn't start at 0. Take the 4 at one end from the 9 at the other.
It doesn't start at 0, so subtract: 9 − 4 = 5 cm.
17. 4 cm
“How much longer” is comparing: take the shorter from the longer, 16 − 12.
16 − 12 = 4 cm.
18. 45 cm
Joined end to end, the two ribbons' lengths add together.
End to end, the lengths add: 8 + 37 = 45 cm.
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