Year 3 Measuring length and recording in tables worksheet

“One Metre, 100 Centimetres” is free to print, with no account. It is the first sheet in the Year 3 maths unit “Measuring length and recording in tables”, for children aged 7 to 8, and takes about 20 minutes.

Print it on A4. The child's pages come first; the answers, and what each wrong answer tells you, are on the grown-up page that follows. Weeks 5 to 7 of the year, 10 sheets in the unit.

Free sample · answers on the last page

One Metre, 100 Centimetres

Name: ____________ · Date: ____________
Year 3 · Maths · about 20 minutes
Answers are on the grown-up page

Today I can estimate lengths in metres and show that 1 m is the same as 100 cm.

A Look back3 min

1.
What is 6 tens?
2.
Count on in tens: 50, 60,
3.
The 7 in 75 is worth

B Watch me, then you4 min

Kit’s plank measures 80 cm. Does it fall short of one metre or go past it?

Watch me

One metre is 100 cm.

80 is less than 100.

So Kit’s plank falls short of one metre.

Now you

1.
Ruby’s rope measures 40 cm. Circle how it compares with one metre.
shorterlonger
2.
A table is 120 cm long. Circle how it compares with one metre.
shorterlonger

C Your turn6 min

Each row builds on the one above. Count the pieces of 10 cm to find the length.

1.
10 pieces of 10 cm, end to end, make cm
2.
7 pieces of 10 cm, end to end, make cm
3.
How many 10 cm pieces make 100 cm?
4.
A plank is 150 cm long. 100 cm is one metre. The plank is 1 m and cm.

Say it out loud: What stayed the same in every row, and what changed?

D Spot the mistake3 min

Ruby says: “100 cm must be longer than 1 m, because 100 is a bigger number than 1.”

1.
Write the sign that goes in the box: 100 cm 1 m

E Think deeper3 min

1.
Ola measures a rope. It is 1 m and 20 cm long. Does it pass one metre, or stop short of it? Explain how you know.

How did it feel?

I can do it Nearly Not yet

For the grown-up

One Metre, 100 Centimetres · 2 minutes to read

Answers, and what a wrong one tells you

A

1. 60 If your child writes 16, they added 10 and 6. Six tens means six bundles of ten, so count the bundles.

2. 70

3. 70

B

1. shorter

2. longer If your child circles shorter, the 120 may have been read as small. 120 cm is more than 100 cm, so it is longer than one metre.

C

1. 100

2. 70 If your child writes 17, they added 10 and 7. Seven lots of 10 cm make 70 cm.

3. 10

4. 50 If your child writes 250, they added 100 to 150. The 150 cm already holds one metre, so take 100 away.

D

1. = If your child writes >, they think the number 100 makes it bigger. 1 m is the same length as 100 cm, so the sign is =.

E

1. Look for: Passes one metre, because 20 cm is extra on top of 1 m, or 120 cm is more than 100 cm.

Words to use

Say“Hold the metre stick next to it. Is it more or less than the stick?”

Instead of“Tell them 100 cm must be bigger because it is a bigger number.”

After the sheet

Before you measure, guess if a door, a sofa and a bag are shorter or longer than one metre. Then check each one with a tape measure.

Tick what your child got right in StudyDen. Anything missed comes back in a later Look back box, so there's no need to redo the sheet.

The rest of this unit

9 more sheets come with a StudyDen plan, in teaching order:

Measuring from the start(with a plan)
Metres and centimetres(with a plan)
Tiny Millimetre Steps(with a plan)
Measuring from any start(with a plan)
Centimetres and millimetres(with a plan)
Estimate, measure, record(with a plan)
Bar graphs and differences(with a plan)
Solving length problems(with a plan)
Length problems with bars(with a plan)

Every Year 3 maths worksheet

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