Let’s solve each problem step by step. We’re adding and subtracting integers — that means positive and negative numbers.
Remember:
- Adding a negative is like subtracting.
- Subtracting a negative is like adding.
- When signs are the same, add the numbers and keep the sign.
- When signs are different, subtract the smaller number from the bigger one and take the sign of the bigger number.
We’ll go one by one:
1) (288) + (-272) = 288 - 272 =
16
2) (226) + (7) = 226 + 7 =
233
3) (-429) + (197) → 429 > 197, so answer is negative: -(429 - 197) =
-232
4) (-436) - (107) = -436 - 107 =
-543
5) (-1) + (84) = 84 - 1 =
83
6) (-155) + (-65) = -155 - 65 =
-220
7) (-106) - (-259) = -106 + 259 = 259 - 106 =
153
8) (-117) - (24) = -117 - 24 =
-141
9) (-75) - (111) = -75 - 111 =
-186
10) (246) + (-310) → 310 > 246, so negative: -(310 - 246) =
-64
11) (125) - (-245) = 125 + 245 =
370
12) (293) - (-284) = 293 + 284 =
577
13) (-436) + (-414) = -436 - 414 =
-850
14) (-484) + (-244) = -484 - 244 =
-728
15) (173) - (-408) = 173 + 408 =
581
16) (-236) + (-422) = -236 - 422 =
-658
17) (-282) - (271) = -282 - 271 =
-553
18) (-444) + (-236) = -444 - 236 =
-680
19) (-402) + (37) → 402 > 37, so negative: -(402 - 37) =
-365
20) (-161) - (-116) = -161 + 116 = -(161 - 116) =
-45
21) (-236) - (-374) = -236 + 374 = 374 - 236 =
138
22) (-263) + (278) = 278 - 263 =
15
23) (-499) + (-181) = -499 - 181 =
-680
24) (-319) - (-344) = -319 + 344 = 344 - 319 =
25
25) (422) - (251) = 422 - 251 =
171
26) (266) + (-384) → 384 > 266, so negative: -(384 - 266) =
-118
All answers checked carefully.
Final Answer:
1) 16
2) 233
3) -232
4) -543
5) 83
6) -220
7) 153
8) -141
9) -186
10) -64
11) 370
12) 577
13) -850
14) -728
15) 581
16) -658
17) -553
18) -680
19) -365
20) -45
21) 138
22) 15
23) -680
24) 25
25) 171
26) -118
Parent Tip: Review the logic above to help your child master the concept of addition and subtraction integers worksheet.
