Let’s solve each problem step by step. We’ll go column by column, starting from the right (ones place) and moving left (tens place). Remember: for addition, we add digits; for subtraction, we subtract — but if the top digit is smaller, we need to borrow (regroup). Since these problems say “No Regrouping or Exchanging,” that means every subtraction will have a bigger number on top, so no borrowing needed!
We’ll do all 14 problems labeled a through n.
---
a. 49 - 23
Ones: 9 - 3 = 6
Tens: 4 - 2 = 2
→
26
---
b. 36 + 32
Ones: 6 + 2 = 8
Tens: 3 + 3 = 6
→
68
---
c. 26 + 31
Ones: 6 + 1 = 7
Tens: 2 + 3 = 5
→
57
---
d. 47 + 22
Ones: 7 + 2 = 9
Tens: 4 + 2 = 6
→
69
---
e. 55 - 32
Ones: 5 - 2 = 3
Tens: 5 - 3 = 2
→
23
---
f. 85 - 32
Ones: 5 - 2 = 3
Tens: 8 - 3 = 5
→
53
---
g. 24 + 30
Ones: 4 + 0 = 4
Tens: 2 + 3 = 5
→
54
---
h. 46 + 33
Ones: 6 + 3 = 9
Tens: 4 + 3 = 7
→
79
---
i. 73 - 32
Ones: 3 - 2 = 1
Tens: 7 - 3 = 4
→
41
---
j. 68 - 26
Ones: 8 - 6 = 2
Tens: 6 - 2 = 4
→
42
---
k. 22 + 57
Ones: 2 + 7 = 9
Tens: 2 + 5 = 7
→
79
---
l. 71 - 31
Ones: 1 - 1 = 0
Tens: 7 - 3 = 4
→
40
---
m. 72 + 27
Ones: 2 + 7 = 9
Tens: 7 + 2 = 9
→
99
---
n. 47 + 51
Ones: 7 + 1 = 8
Tens: 4 + 5 = 9
→
98
Wait — let me double-check
n: 47 + 51 → 7+1=8, 4+5=9 → yes, 98.
But wait — looking back at the image, problem
n is actually:
> n.
> 4 7
> + 5 1
> ——
> ?
Yes, 47 + 51 = 98 ✔️
And problem
o? Wait — in the original sheet, there are only up to
n. Let me count again.
In the second worksheet, it goes from
a to
n, which is 14 problems. I did them all.
Wait — I think I missed one? Let me list them again:
a, b, c, d, e → 5
f, g, h, i, j → 5 more → total 10
k, l, m, n → 4 more → total 14. Yes.
All done.
Final Answers:
a. 26
b. 68
c. 57
d. 69
e. 23
f. 53
g. 54
h. 79
i. 41
j. 42
k. 79
l. 40
m. 99
n. 98
I’ll write them in order as requested.
──────────────────────────────────────
Final Answer:
a. 26
b. 68
c. 57
d. 69
e. 23
f. 53
g. 54
h. 79
i. 41
j. 42
k. 79
l. 40
m. 99
n. 98
Parent Tip: Review the logic above to help your child master the concept of subtraction worksheet with columns.
