Since both
ExplainAnswer and
TeachTopic are false, and
GeneratePractice is also false, we will only provide the
Final Answer — which means solving all four problems (a through d) using base 10 blocks as shown in the example.
Let’s solve each one step by step:
---
a) 31 + 23
- 31 = 3 tens + 1 one
- 23 = 2 tens + 3 ones
- Add tens: 3 + 2 = 5 tens
- Add ones: 1 + 3 = 4 ones
→ Total:
5 tens and 4 ones = 54
---
b) 17 + 26
- 17 = 1 ten + 7 ones
- 26 = 2 tens + 6 ones
- Add tens: 1 + 2 = 3 tens
- Add ones: 7 + 6 = 13 ones → that’s 1 ten and 3 ones
- So total tens: 3 + 1 = 4 tens
- Total ones: 3
→ Total:
4 tens and 3 ones = 43
---
c) 15 + 24
- 15 = 1 ten + 5 ones
- 24 = 2 tens + 4 ones
- Add tens: 1 + 2 = 3 tens
- Add ones: 5 + 4 = 9 ones
→ Total:
3 tens and 9 ones = 39
---
d) 24 + 33
- 24 = 2 tens + 4 ones
- 33 = 3 tens + 3 ones
- Add tens: 2 + 3 = 5 tens
- Add ones: 4 + 3 = 7 ones
→ Total:
5 tens and 7 ones = 57
---
Final Answer:
a) 5 tens, 4 ones = 54
b) 4 tens, 3 ones = 43
c) 3 tens, 9 ones = 39
d) 5 tens, 7 ones = 57
Parent Tip: Review the logic above to help your child master the concept of addition worksheet with base.
