Year 4 Comparing, ordering and rounding 4-digit numbers worksheet

“Splitting 4-digit numbers” is free to print, with no account. It is the first sheet in the Year 4 maths unit “Comparing, ordering and rounding 4-digit numbers”, for children aged 8 to 9, 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. Week 6 of the year, 5 sheets in the unit.

Free sample · answers on the last page

Splitting 4-digit numbers

Name: ____________ · Date: ____________
Year 4 · Maths · about 20 minutes
Answers are on the grown-up page

Today I can split a 4-digit number into parts and keep zeros as placeholders.

A Look back3 min

1.
4 tens and 7 ones make
2.
500 + 60 + 3 =
3.
512 521

B Watch me, then you4 min

Split 4207 into thousands, hundreds and ones.

Watch me

4207 is the whole. Its parts are 4000, 200 and 7.

4000 + 200 + 7 = 4207

The 0 in the tens column is a placeholder. It shows there are no tens.

Now you

1.
2308 = 2000 + + 8. Keep the empty tens column in mind.

C Your turn6 min

Each row changes one thing. Watch where the zero moves.

1.
4000 + 500 + 2 =
2.
4000 + 50 + 2 =
3.
4000 + 500 + 20 =
4.
Same total, different split: 4000 + 520 =

Say it out loud: Where does the zero sit in each row, and why must it stay there?

D Spot the mistake3 min

Ali says: “3502 is the same number as 352, so the zero does nothing.”

1.
3502 minus 3000 is

E Think deeper4 min

1.
Write three different two-part sums that each make 4207.

How did it feel?

I can do it Nearly Not yet

For the grown-up

Splitting 4-digit numbers · 2 minutes to read

Answers, and what a wrong one tells you

A

1. 47

2. 563

3. <

B

1. 300 If your child writes 30, the number becomes 2038. That puts the 3 in the tens column. The 3 belongs in the hundreds, so write 300.

C

1. 4502

2. 4052 If your child writes 4007, the 50 has become 5. 50 is 5 tens, so the 5 goes in the tens column with a 0 in the hundreds.

3. 4520 If your child writes 4502, the 20 has been read as 2. 20 is 2 tens, so the 2 belongs in the tens column.

4. 4520

D

1. 502 If your child writes 52, the 500 has shrunk to 50. The 5 is in the hundreds column, so it stays 500.

E

1. Look for: three different two-part sums that each add to 4207, such as 4000 + 207 or 4200 + 7

Words to use

Say“Which column is empty? Keep a 0 there so every digit stays in its place.”

Instead of“Just read the digits out and move on.”

After the sheet

Write each digit of a 4-digit number on its own card, such as 3, 0, 5 and 2. Mix them up, then rebuild the number.

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

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

Comparing big numbers(with a plan)
Rounding to the nearest thousand(with a plan)
Rounding to hundreds and tens(with a plan)
Rounding to the nearest(with a plan)

Every Year 4 maths worksheet

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