Rounding
Round 234 to the nearest 10
230
Estimate the sum of: 234 + 487
720 or 700
329 + 205
534
Estimate the difference: 425 - 236
How many legs does a spider have
8
Round 478 to the nearest 10
480
Estimate the sum: 632 + 221
800 or 850
445 + 289
734
Estimate the difference: 578 - 426
200 or 150
Who was the first man to step foot on the moon?
Neil Armstrong
Round 721 to the nearest hundred
700
Estimate the sum: 402 + 349
700 or 750
652 + 271
923
Subtract: 658 - 342
316
What day of the year is Independence Day?
July 4th
Round 469 to the nearest hundred
500
Estimate the sum: 389 + 532
900 or 920
532 + 298
830
Subtract: 347 - 162
185
How many bones does a shark have?
Zero
Round 4,829 to the nearest hundred
4,800
1,400 or 1,380
568 + 498
1,066
Subtract: 623 - 379
244
Who was the 16th president of the United States?
Abraham Lincoln