Addition
543 + 387
930
400 + 60 + 2
equal?
820
What is 432 rounded to the nearest ten?
430
543 - 121
422
122 - 87
35
717 + 554
1271
Amy has 345 marbles. Her mom gives her 249 more marbles. How many marbles does Amy have?
345 + 249 = 594
What is 328 rounded to the nearest ten?
330
678 - 433
245
981 - 777
204
365 + 123
488
Copperfield saw 312 twist ties. He then saw 257 more twist ties. How many twist ties does Copperfield have?
312 + 257 = 569
What is 457 rounded to the nearest hundred?
500
541 - 332
209
Eden bought 546 pencils. He used 321 pencils this school year. How many pencils does Eden have left?
546 - 321 = 225
633 + 297
930
Jerome made 555 chocolate chip cookies. Julian then made 488 more chocolate chip cookies. How many chocolate chip cookies are there?
555 + 488 = 1,043
Round each number to the nearest ten and then add.
532 + 377
530 + 380 = 910
634 - 543
91
What is the difference between 386 and 128?
386 - 128 = 258
188 + 388
576
698 + 54
752
Round each number to the nearest ten and then add.
456 + 421
460 + 420 = 880
711 - 522
189
443 - 387 = 56