Addition and subtraction · Ages 6–7

Column addition and subtraction worksheet

Part of: Two-digit addition and subtraction

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Addition and subtraction · Ages 6–7

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Name:Date:Score:／48

Write each answer in the space. For word problems, show your working and write a sentence answer.

1.Work out the column subtraction. What goes under the line?
Answer:
2.Work out the sum in column form. What goes under the line?
Answer:
3.What digit is the ? in the sum in column form?
Answer:
4.Work out 12 + 59 in column form: the answer has in the tens and in the ones.
Fill in each blank
Answer:
5.Work out 45 + 19 in column form: the answer has in the tens and in the ones.
Fill in each blank
Answer:
6.Work out 36 + 55 in column form: the answer has in the tens and in the ones.
Fill in each blank
Answer:
7.What digit is the ? in the column subtraction?
Answer:

13.Chi-keung has 94 stickers and gives 51 to friends. Working in column form, how many does Chi-keung have left?
Working:
Answer:
14.An orchard picks 28 oranges on the first day and 59 on the second. Working in column form, how many oranges is that in the two days?
Working:
Answer:
15.One bag has 29 sweets and another has 13. Ming adds them in column form: ones 9 + 3 = , write and carry 1 to the tens; tens 2 + 1 + 1 = . The two bags hold sweets.
Fill in each blank
Working:
Answer:
16.An orchard picks 59 oranges on the first day and 26 on the second. Working in column form, how many oranges is that in the two days?
Working:
Answer:
17.Ka-yee has 73 stickers and gives 63 to friends. Working in column form, how many does Ka-yee have left?
Working:
Answer:
18.One bag has 47 sweets and another has 16. Ka-lok adds them in column form: ones 7 + 6 = , write and carry 1 to the tens; tens 4 + 1 + 1 = . The two bags hold sweets.
Fill in each blank
Working:
Answer:

Show the answers and working

Column addition and subtraction worksheet: Answers and working

1. 22
Start with the ones: take the bottom ones digit from the top one, then do the tens.
Ones 5 − 3 = 2, tens 3 − 1 = 2: 22.
2. 38
Ones line up under ones. Start with the ones column: add its two digits first.
Ones 8 + 0 = 8, tens 2 + 1 = 3: 38.
3. 3
Look at the ones column first: ? plus the digit below it must end like the answer does.
Look at the ones: ? + 1 must end like the answer, so ? is 3; check with 23 + 51 = 74.
4. 7, 1
Do the ones first: 2 + 9 goes past 9, so write the ones and carry 1 into the tens.
Ones 2 + 9 = 11: write 1, carry 1. Tens 1 + 5 + 1 = 7: 71.
5. 6, 4
Do the ones first: 5 + 9 goes past 9, so write the ones and carry 1 into the tens.
Ones 5 + 9 = 14: write 4, carry 1. Tens 4 + 1 + 1 = 6: 64.
6. 9, 1
Do the ones first: 6 + 5 goes past 9, so write the ones and carry 1 into the tens.
Ones 6 + 5 = 11: write 1, carry 1. Tens 3 + 5 + 1 = 9: 91.
7. 3
See which place the ? is in and look at that column only: the top digit minus the bottom one must give the answer's digit.
77 − 33 = 44: ones 7 − 3, tens 7 − 3, so the ? is 3. Or check by adding: 44 + 33 = 77.

8. C
Columns must have ones under ones and tens under tens. Check which one lines them up.
44 on top, 28 below, ones under ones, + on the left.
9. A
Columns must have ones under ones and tens under tens. Check which one lines them up.
18 on top, 62 below, ones under ones, + on the left.
10. B
Columns must have ones under ones and tens under tens. Check which one lines them up.
20 on top, 72 below, ones under ones, + on the left.
11. D
Columns must have ones under ones and tens under tens. Check which one lines them up.
51 on top, 39 below, ones under ones, + on the left.
12. False
Work it out yourself from the ones: ones from ones, tens from tens, then compare with the picture.
Ones from ones, tens from tens: 99 − 87 = 12.

Marking: 2 for the working, 1 for the answer, 1 for the sentence.

13. 43 stickers
Write 94 on top and 51 below, ones under ones. Start subtracting from the ones.
Ones from ones, tens from tens: 94 − 51 = 43.
14. 87 oranges
Set 28 and 59 out in column form and start with the ones. They go past 9, so carry 1 to the tens.
The ones make 10 or more, so carry 1: 28 + 59 = 87.
15. 12, 2, 4, 42
Do the ones first, 9 + 3: if it goes past 9, what is written in the ones and what is carried?
Ones 12: write 2, carry 1; tens 4: 42 in all.
16. 85 oranges
Set 59 and 26 out in column form and start with the ones. They go past 9, so carry 1 to the tens.
The ones make 10 or more, so carry 1: 59 + 26 = 85.
17. 10 stickers
Write 73 on top and 63 below, ones under ones. Start subtracting from the ones.
Ones from ones, tens from tens: 73 − 63 = 10.
18. 13, 3, 6, 63
Do the ones first, 7 + 6: if it goes past 9, what is written in the ones and what is carried?
Ones 13: write 3, carry 1; tens 6: 63 in all.

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