Grade 2 · Math · Unit 7 of 10

Measuring

Centimetres and metres

What your child practises

Measuring with a ruler from zero and choosing between centimetres and metres.

BC Curriculum learning standard: Direct linear measurement, using standard units (centimetres, metres)

How we explain it

Children can open this short lesson before they practise.

Centimetres (cm) measure short lengths.
Metres (m) measure long lengths.
Line up the 0 on the ruler with one end.

Example: Would you measure a pencil in cm or m? A pencil is short. Short things use centimetres. Answer: cm

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

Question 1
Would you measure a crayon in centimetres or metres?
🖍️
- centimetres
- metres
Show answer
centimetres
Hint: Small things: centimetres (cm). Big things: metres (m). 1 metre is 100 centimetres.
Question 2
How long is the key?
🔑
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
cm
- 8 cm
- 9 cm
- 6 cm
Show answer
8 cm
Hint: Start at 0. Count the centimetres to the end of the key.
Question 3
How long is the spoon?
🥄
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
cm
- 5 cm
- 10 cm
- 4 cm
Show answer
4 cm
Hint: Start at 0. Count the centimetres to the end of the spoon.
Question 4
Would you measure a book in centimetres or metres?
📕
- metres
- centimetres
Show answer
centimetres
Hint: Small things: centimetres (cm). Big things: metres (m). 1 metre is 100 centimetres.
Question 5
How long is the caterpillar?
🐛
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
cm
- 7 cm
- 11 cm
- 6 cm
Show answer
6 cm
Hint: Start at 0. Count the centimetres to the end of the caterpillar.
Question 6
Would you measure a playground in centimetres or metres?
🛝
- metres
- centimetres
Show answer
metres
Hint: Small things: centimetres (cm). Big things: metres (m). 1 metre is 100 centimetres.