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MathematicsGrade 2en

➖ Subtraction Within 100

Master two-digit subtraction using place value strategies and regrouping! This quiz covers breaking numbers into tens and ones, trading tens for ones when needed, and using inverse relationships with addition to check your work. **What you'll learn:** - How to subtract two-digit numbers using place value - When and how to regroup (trade tens for ones) - Connecting subtraction facts to addition facts - Quick mental subtraction strategies

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Questions in this quiz

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  1. Question 1

    What is 45−1245 - 12?

  2. Question 2

    When we subtract 34−1834 - 18, why do we need to regroup?

  3. Question 3

    The number 56 can be written as 4 tens and 16 ones after regrouping.

  4. Question 4

    What is 52−2752 - 27 using place value?

  5. Question 5

    If 60−25=3560 - 25 = 35, which addition fact helps us check this answer?

  6. Question 6

    73−30=4373 - 30 = 43

  7. Question 7

    What is 68−1968 - 19?

  8. Question 8

    When subtracting 55−2855 - 28, what do we get after regrouping 55?

  9. Question 9

    You always need to regroup when subtracting two-digit numbers.

  10. Question 10

    What is 80−1480 - 14?

  11. Question 11

    Which subtraction problem does NOT require regrouping?

  12. Question 12

    Using a mental strategy, what is 50−1550 - 15?

  13. Question 13

    96−36=6096 - 36 = 60

  14. Question 14

    What is 70−2470 - 24?

  15. Question 15

    Which addition sentence shows the inverse of 39−14=2539 - 14 = 25?

  16. Question 16

    When solving 63−1763 - 17, we regroup 63 to get 5 tens and 13 ones.