Let’s solve each problem step by step. We’ll start with the addition problems, then move to subtraction.
---
Addition Problems (Find the sum):
① 52 + 168 + 69
First, add 52 + 168 = 220
Then, 220 + 69 =
289
② 285 + 308 + 889
285 + 308 = 593
593 + 889 =
1482
③ 633 + 354 + 854
633 + 354 = 987
987 + 854 =
1841
④ 902 + 609 + 952
902 + 609 = 1511
1511 + 952 =
2463
⑤ 183 + 659 + 49
183 + 659 = 842
842 + 49 =
891
⑥ 345 + 224 + 80
345 + 224 = 569
569 + 80 =
649
⑦ 922 + 866 + 170
922 + 866 = 1788
1788 + 170 =
1958
⑧ 342 + 251 + 157
342 + 251 = 593
593 + 157 =
750
---
Subtraction Problems (Find the difference):
① 191 - 72
191 - 70 = 121, then 121 - 2 =
119
② 792 - 91
792 - 90 = 702, then 702 - 1 =
701
③ 922 - 83
922 - 80 = 842, then 842 - 3 =
839
④ 168 - 98
168 - 100 = 68, but we subtracted 2 too many, so 68 + 2 =
70
⑤ 974 - 84
974 - 80 = 894, then 894 - 4 =
890
⑥ 812 - 80
812 - 80 =
732
⑦ 625 - 78
625 - 70 = 555, then 555 - 8 =
547
⑧ 728 - 90
728 - 90 =
638
---
Final Answer:
Addition Answers:
① 289
② 1482
③ 1841
④ 2463
⑤ 891
⑥ 649
⑦ 1958
⑧ 750
Subtraction Answers:
① 119
② 701
③ 839
④ 70
⑤ 890
⑥ 732
⑦ 547
⑧ 638
Parent Tip: Review the logic above to help your child master the concept of addition worksheet for grade 4.
