Here are the solutions for the addition problems on your worksheet. I have calculated each sum step by step to ensure accuracy.
1. $813 + (-16)$
When adding a negative number, it is the same as subtracting.
$813 - 16 = 797$
2. $105 + 72$
Add the two positive numbers together.
$100 + 70 = 170$
$5 + 2 = 7$
$170 + 7 = 177$
3. $263 + 0$
Adding zero to any number keeps the number the same.
Answer: $263$
4. $107 + 124$
$100 + 100 = 200$
$7 + 24 = 31$
$200 + 31 = 231$
5. $797 + 17$
$797 + 10 = 807$
$807 + 7 = 814$
6. $-44 + 46$
The signs are different, so we subtract the smaller absolute value from the larger one ($46 - 44 = 2$). The sign of the larger number ($46$) is positive.
Answer: $2$
7. $509 + 106$
$500 + 100 = 600$
$9 + 6 = 15$
$600 + 15 = 615$
8. $57 + 132$
$50 + 130 = 180$
$7 + 2 = 9$
$180 + 9 = 189$
9. $-3 + 62$
This is the same as $62 - 3$.
$62 - 3 = 59$
10. $-16 + 99$
This is the same as $99 - 16$.
$99 - 10 = 89$
$89 - 6 = 83$
11. $332 + 41$
$332 + 40 = 372$
$372 + 1 = 373$
12. $610 + 73$
$610 + 70 = 680$
$680 + 3 = 683$
Final Answer:
1. 797
2. 177
3. 263
4. 231
5. 814
6. 2
7. 615
8. 189
9. 59
10. 83
11. 373
12. 683
Parent Tip: Review the logic above to help your child master the concept of negative and positive worksheet.
