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Grade 1–3Common Core (CCSS) · Math: number sense

Math · Grade 2

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Column addition · Grade 2

Name: ____________________

Worked example

4 + 3 = 7
  1. Goal: calculate 4 + 3.
  2. Count the ones. 4 + 3 = 7.
  3. Write 7 in the ones column.
  4. Check: 7 − 3 = 4.
Example: how to solve it
1.
9
+14
2.

Omar has 4 raisins and a friend gives 5 more. How many raisins does Omar have now?

3.
3
+16
4.

Robin collects 18 shells on the beach and 18 by the pier. How many shells does Robin collect?

5.
20
+16
6.

3 children are playing in the sandpit. Then 18 more come. How many children are in the sandpit?

7.
45
+5
8.

Noa has 4 toy cars. At the party Noa gets 7 more. How many cars does Noa have now?

9.
15
+23
10.

21 tulips and 12 roses bloom in the garden. How many flowers are blooming?

11.
12
+15
12.

Mika has 28 kr and gets 8 kr from Grandpa. How much money does Mika have now?

13.
3
+36
14.

Hugo has 14 apples in a bag. Grandma gives Hugo 16 more. How many apples does Hugo have now?

15.
18
+30
16.

There are 13 pencils in the cup. The teacher adds 11 more. How many pencils are in the cup?

17.
43
+5
18.

Vera finds 24 pine cones in the woods and 23 by the path. How many pine cones does Vera find?

19.
9
+4
20.

23 fish swim in the tank. Dad buys 19 more fish. How many fish are in the tank now?

Answer key

  1. 1. 23
  2. 2. 9 raisins
  3. 3. 19
  4. 4. 36 shells
  5. 5. 36
  6. 6. 21 children
  7. 7. 50
  8. 8. 11 cars
  9. 9. 38
  10. 10. 33 flowers
  11. 11. 27
  12. 12. 36 kr
  13. 13. 39
  14. 14. 30 apples
  15. 15. 48
  16. 16. 24 pencils
  17. 17. 48
  18. 18. 47 pine cones
  19. 19. 13
  20. 20. 42 fish

Created with WorksheetMint

Step 1 of 5

Choose an area

Your choices

Area
Addition & subtraction
Exercise type
Column addition
Grade
2 (ages 7–8)
Difficulty
Easy
Number of tasks
20
Task format
Mixed
Paper size
US Letter
1. Choose content
Area
More options

Two-digit addition and subtraction within 100 for second graders, from no regrouping to carrying and borrowing.

How to use the tool

  1. Pick a difficulty: easy, medium or hard.
  2. Choose how many problems you want (10, 20 or 30).
  3. Print or save as PDF. “Create new version” gives brand-new problems with the same settings.

About this generator

Second grade is where students add and subtract fluently within 100 and start regrouping. The easy level avoids regrouping, medium mixes it in and hard uses it on most problems, so you can differentiate one lesson three ways. Every sheet has a separate answer key calculated by the website, so answers always match the problems. Free, no sign-up, US Letter by default.

Popular uses

  • Morning work
  • Math centers
  • Homework
  • Regrouping practice

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Frequently asked questions

How do I pick the right level?
Choose an age or grade in step 2. Start easier if the pupil is unsure – you can switch anytime and get new problems instantly.
Can I see the problems before printing?
Yes. The sheet shows exactly the problems that will print. Click New problems to swap them.
How do I include an answer key?
Turn on Answer key in the last step. It prints on its own page after the problems, with the same numbering.
What does the question mark next to a problem do?
It opens a step-by-step explanation of the method on screen. It is not printed and does not reveal the answer.
Do these include regrouping?
Yes. Medium and hard levels include carrying and borrowing; easy has no regrouping.
What numbers do 2nd graders use?
Numbers up to 100, which is what these sheets stay within.

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