Let’s solve each problem step by step. We’re using base ten blocks:
- A long green or purple bar = 10 (a “ten”)
- A small cube = 1 (a “one”)
We’ll count the tens and ones in each group, add them together, then write the total number in the box.
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Problem 1:
Left side: 3 tens + 6 ones → 30 + 6 =
36
Right side: 2 tens + 5 ones → 20 + 5 =
25
Add: 36 + 25 = ?
Break it down:
36 + 20 = 56
56 + 5 =
61
✔ First answer:
61
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Problem 2:
Left side: 4 tens + 7 ones → 40 + 7 =
47
Right side: 3 tens + 8 ones → 30 + 8 =
38
Add: 47 + 38 = ?
Break it down:
47 + 30 = 77
77 + 8 =
85
✔ Second answer:
85
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Problem 3:
Left side: 5 tens + 9 ones → 50 + 9 =
59
Right side: 4 tens + 6 ones → 40 + 6 =
46
Add: 59 + 46 = ?
Break it down:
59 + 40 = 99
99 + 6 =
105
✔ Third answer:
105
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Problem 4:
Left side: 1 ten + 5 ones → 10 + 5 =
15
Right side: 1 ten + 5 ones → 10 + 5 =
15
Add: 15 + 15 =
30
✔ Fourth answer:
30
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Now let’s double-check all answers:
1. 36 + 25 = 61 ✔️
2. 47 + 38 = 85 ✔️
3. 59 + 46 = 105 ✔️
4. 15 + 15 = 30 ✔️
All correct!
Final Answer:
61, 85, 105, 30
Parent Tip: Review the logic above to help your child master the concept of 10 more 10 less worksheets.
