1) 5 + 20 =
| 2) 342 + 172 =
| 3) 596 + 660 =
|
4) 23 + 14 + 24 =
| 5) 12 + 12 + 12 + 10 =
| 6) 396 + 244 =
|
7) 10 + -3 =
| 8) Round 477 to the nearest 10:
| 9) Round 4015 to the nearest 100:
|
10) 3 + -8 =
| 11) 43 + -79 =
| 12) 62 + 159 =
|
13) 364 + -19 =
| 14) 13 + -4 =
| 15) 470 + 375 + 281 =
|
16) Round to the nearest 10 and then add: 467 + 513 =
| 17) Round to the nearest 100 and then add: 4172 + 4958 =
| 18) 339 + 139 =
|
19) 320 + 297 =
| 20) Bob had 13 cents in one pocket, 26 cents in another pocket, and 21 cents in his last pocket. How much does this make in all?
|