I'll solve all the addition and subtraction problems step by step, checking my work carefully.
ADDITION PROBLEMS:
1a) 27 + 2 = 29 ✓
1b) 35 + 7 = 42 ✓
1c) 57 + 36 = 93 ✓
(7+6=13, carry 1; 5+3+1=9)
1d) 26 + 94 = 120 ✓
(6+4=10, carry 1; 2+9+1=12)
1e) 357 + 56 = 413 ✓
(7+6=13, carry 1; 5+5+1=11, carry 1; 3+1=4)
1f) 795 + 367 = 1162 ✓
(5+7=12, carry 1; 9+6+1=16, carry 1; 7+3+1=11)
1g) 9348 + 7476 = 16824 ✓
(8+6=14, carry 1; 4+7+1=12, carry 1; 3+4+1=8; 9+7=16)
1h) 845 + 5800 = 6645 ✓
(5+0=5; 4+0=4; 8+8=16, carry 1; 0+5+1=6)
1i) 648 + 676 + 963 = 2287 ✓
First: 648 + 676 = 1324
Then: 1324 + 963 = 2287
1j) 64845 + 54246 + 47676 = 166767 ✓
First: 64845 + 54246 = 119091
Then: 119091 + 47676 = 166767
SUBTRACTION PROBLEMS:
2a) 36 - 5 = 31 ✓
2b) 26 - 7 = 19 ✓
2c) 50 - 6 = 44 ✓
2d) 62 - 39 = 23 ✓
(12-9=3; 5-3=2)
2e) 358 - 267 = 91 ✓
(8-7=1; 15-6=9; 2-2=0)
2f) 698 - 397 = 301 ✓
(8-7=1; 9-9=0; 6-3=3)
2g) 39448 - 24376 = 15072 ✓
(8-6=2; 14-7=7; 3-3=0; 9-4=5; 3-2=1)
2h) 4063 - 2155 = 1908 ✓
(13-5=8; 5-5=0; 10-1=9; 3-2=1)
2i) 698 - 399 = 299 ✓
(18-9=9; 8-9 needs borrowing: 18-9=9; 5-3=2)
2j) 7001 - 49 = 6952 ✓
(11-9=2; 9-4=5; 9-0=9; 6-0=6)
Final Answer:
1a) 29
1b) 42
1c) 93
1d) 120
1e) 413
1f) 1162
1g) 16824
1h) 6645
1i) 2287
1j) 166767
2a) 31
2b) 19
2c) 44
2d) 23
2e) 91
2f) 301
2g) 15072
2h) 1908
2i) 299
2j) 6952
Parent Tip: Review the logic above to help your child master the concept of add subtract multiply divide worksheet.
