Two-Digit Subtraction: Trashketball Review Questions
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Two-Digit Subtraction: Trashketball Review Questions
Trashketball and Around the World questions for subtracting two-digit numbers, most with regrouping, Grade 2: 24 numbered questions to read aloud or project, such as 72 − 35. With an answer key, for any no-tech review game.
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- 2
- Last updated
- Time
- About 20 minutes
- Answer key
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- Black and white
- Related curriculum
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Subtract numbers with two or more digits in columns, borrowing from the next place when needed.
Reviewed by Ms. Olivia Parker, Teacher. How we check worksheets
How to use this sheet
- Before each problem, have the child look at every column and say whether it needs regrouping.
- Model a few problems with base ten blocks so trading a ten for ten ones makes sense.
- Check every answer by adding it to the number taken away. The total should be the top number.
Common mistakes
- Subtracting the smaller digit from the larger in each column, so 52 − 17 becomes 45. When the top digit is smaller, regroup.
- Regrouping but not crossing out and lowering the digit it came from, so the tens column is too big.
- Getting stuck on zeros, as in 400 − 128. Regroup a hundred into 10 tens first, then a ten into 10 ones.
- Regrouping when it is not needed, such as for 58 − 23. Check each column before starting.
