This hard worksheet, Regrouping Mastery, pushes second graders to think carefully about every digit. Part A has four multiple-choice questions, including What is 48 + 35? and a tricky one asking which subtraction needs regrouping among 86 - 42, 73 - 31, 61 - 28, and 95 - 53. Students also figure out the ones-place digit when adding 57 + 28. Part B has five fill-in-the-blank problems like 76 + 18, 91 - 54, and 85 - 38. By the end, second graders feel sure about regrouping decisions and can solve two-digit problems with strong, accurate place-value reasoning.
Style:
Two-Digit Addition & Subtraction
Part A: Multiple Choice
Circle the best answer for each question.
1. What is 48 + 35?
A) 73
B) 83
C) 82
D) 93
2. Which subtraction problem requires regrouping?
A) 86 - 42
B) 73 - 31
C) 61 - 28
D) 95 - 53
3. What is 90 - 46?
A) 54
B) 44
C) 56
D) 34
4. If you add 57 + 28, what digit goes in the ones place?
A) 5
B) 7
C) 3
D) 15
Part B: Fill in the Blank
Write the correct answer on each line.
1. 76 + 18 = 94.
2. 91 - 54 = 37.
3. 43 + 49 = 92.
4. 85 - 38 = 47.
5. 66 + 27 = 93.
Two-Digit Addition & Subtraction
★ Part A: Multiple Choice
Circle the best answer for each question.
1. What is 48 + 35?
A) 73
B) 83
C) 82
D) 93
2. Which subtraction problem requires regrouping?
A) 86 - 42
B) 73 - 31
C) 61 - 28
D) 95 - 53
3. What is 90 - 46?
A) 54
B) 44
C) 56
D) 34
4. If you add 57 + 28, what digit goes in the ones place?
A) 5
B) 7
C) 3
D) 15
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) 76 + 18 = 94.
2) 91 - 54 = 37.
3) 43 + 49 = 92.
4) 85 - 38 = 47.
5) 66 + 27 = 93.
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9 Questions
12-18 minutes
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