Year 4 Review of column addition and subtraction worksheet

“Addends and sums” is free to print, with no account. It is the first sheet in the Year 4 maths unit “Review of column addition and subtraction”, 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. Weeks 1 to 3 of the year, 15 sheets in the unit.

Free sample · answers on the last page

Addends and sums

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

Today I can find the addends and the sum in a column addition.

A Look back3 min

1.
3 tens and 4 ones make
2.
10 more than 58 is
3.
47 74

B Watch me, then you4 min

The book stall sells 27 books in the morning and 15 books in the afternoon. Sam adds them in a column. The total is 42.

Watch me

27 and 15 are the addends. Both sit above the line, with 15 under 27.

Ones go under ones and tens go under tens.

The sum, 42, is written inside the equals sign.

Now you

1.
The addends are 36 and 23. The sum is

C Your turn6 min

Each sentence names the addends. Set them out in a column on scrap paper, then write the sum in the box.

1.
The addends are 21 and 34. The sum is
2.
The addends are 21 and 43. The sum is
3.
The addends are 43 and 21. The sum is
4.
The addends are 43 and 31. The sum is

Say it out loud: What changed between the first two rows? What stayed the same when the addends swapped?

D Spot the mistake3 min

Kit writes 35 with 42 under it and adds them. Kit says: “The sum is the bottom number, so the sum is 42.”

1.
What is the sum of 35 and 42?

E Think deeper3 min

1.
Kai writes 48 on top and 13 below. Ben writes 13 on top and 48 below. Explain why both sums are the same.

How did it feel?

I can do it Nearly Not yet

For the grown-up

Addends and sums · 2 minutes to read

Answers, and what a wrong one tells you

A

1. 34

2. 68 If your child writes 59, they have added 1 instead of 10. Ask how many tens are in 58.

3. <

B

1. 59 If your child writes a number that is not the total, ask them to add the ones first, then the tens.

C

1. 55

2. 64 If your child lines the numbers up wrongly, check that the tens sit under the tens and the ones under the ones.

3. 64

4. 74

D

1. 77 If your child copies the bottom number, ask which number sits inside the equals sign. The sum goes there, and it is the total of both addends.

E

1. Look for: Both show the same two addends, so the sum stays the same whichever way round they are written.

Words to use

Say“Point to the equals sign first. What is above it, and what is inside it?”

Instead of“Just add the numbers and write the answer wherever there is space.”

After the sheet

Write two numbers one above the other on scrap paper, with tens under tens. Add them, then point to each addend and to the sum.

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

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

Keeping digits in their columns(with a plan)
Adding in columns(with a plan)
Lining up three-digit sums(with a plan)
Column addition in context(with a plan)
Regrouping the ones(with a plan)
Regrouping tens(with a plan)
Carrying in two places(with a plan)
Smart checks for column adding(with a plan)
Estimate, then add with carrying(with a plan)
The whole and the take-away(with a plan)
Column subtraction review(with a plan)
Regrouping in subtraction(with a plan)
Unlocking tens from hundreds(with a plan)
Pick the Best Strategy(with a plan)

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