Of course! Let's solve each of the integer addition and subtraction problems step by step. The key rules to remember are:
- Subtracting a negative number is the same as adding its positive counterpart: `a - (-b) = a + b`
- Adding a negative number is the same as subtracting its positive counterpart: `a + (-b) = a - b`
- When adding two numbers with the same sign, add their absolute values and keep the sign.
- When adding two numbers with different signs, subtract the smaller absolute value from the larger one and keep the sign of the number with the larger absolute value.
---
Row 1
1.
-223 - (-562)
→ -223 + 562 =
339
2.
422 - (-439)
→ 422 + 439 =
861
3.
-332 - (-126)
→ -332 + 126 =
-206
---
Row 2
4.
108 - (-131)
→ 108 + 131 =
239
5.
-121 + 176
→ 176 - 121 =
55
6.
509 + (-195)
→ 509 - 195 =
314
---
Row 3
7.
-200 + 306
→ 306 - 200 =
106
8.
275 - (-135)
→ 275 + 135 =
410
9.
-450 + (-35)
→ -450 - 35 =
-485
---
Row 4
10.
-678 - (-300)
→ -678 + 300 =
-378
11.
-564 - 90
→ -564 - 90 =
-654
12.
-556 - (-620)
→ -556 + 620 =
64
---
Row 5
13.
-138 + (-67)
→ -138 - 67 =
-205
14.
-300 - (-240)
→ -300 + 240 =
-60
15.
-451 - 68
→ -451 - 68 =
-519
---
Row 6
16.
-102 - 733
→ -102 - 733 =
-835
17.
-220 + (-300)
→ -220 - 300 =
-520
18.
-126 - (-70)
→ -126 + 70 =
-56
---
Row 7
19.
-552 + 202
→ 202 - 552 =
-350
20.
-332 - 228
→ -332 - 228 =
-560
21.
-640 + 100
→ -640 + 100 =
-540
---
Row 8
22.
346 - (-102)
→ 346 + 102 =
448
23.
-355 - (-138)
→ -355 + 138 =
-217
24.
-275 + (-55)
→ -275 - 55 =
-330
---
Row 9
25.
-104 - 229
→ -104 - 229 =
-333
26.
175 + (-112)
→ 175 - 112 =
63
27.
-430 - 400
→ -430 - 400 =
-830
---
##
✔ Final Answers (in order):
```
339 861 -206
239 55 314
106 410 -485
-378 -654 64
-205 -60 -519
-835 -520 -56
-350 -560 -540
448 -217 -330
-333 63 -830
```
You can now fill these in on your worksheet! Let me know if you’d like a printable version or explanation for any specific problem.
Parent Tip: Review the logic above to help your child master the concept of addition and subtraction of integers worksheet.
