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Two-Digit Subtraction Without Borrowing

Grade 2 · Stretch challenge · 12 questions · Version PG-9ZFQ2T-ZTN0

Four children and a teacher collaborate with blocks, patterns, and a notebook.
1.

64 - 21 =

2.

80 - 50 =

3.

12 - 10 =

4.

73 - 42 =

5.

69 - 27 =

6.

28 - 23 =

7.

79 - 32 =

8.

51 - 41 =

9.

90 - 90 =

10.

88 - 87 =

11.

39 - 14 =

12.

78 - 74 =

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 9
  1. 64 - 21 =43
  2. 80 - 50 =30
  3. 12 - 10 =2
  4. 73 - 42 =31
  5. 69 - 27 =42
  6. 28 - 23 =5
  7. 79 - 32 =47
  8. 51 - 41 =10
  9. 90 - 90 =0
  10. 88 - 87 =1
  11. 39 - 14 =25
  12. 78 - 74 =4

Worked example

78 - 35 = 43. Subtract ones, then tens.

Common mistake

Starting with the tens and losing track of the ones column.

Helpful hint

Start in the ones column.