Subtract Mentally
357 - 10 = ?
347
900 - 688
212
Quinn had 300 red, blue, and green blocks. 125 of the blocks are red. How many of the blocks are blue or green?
300 - 125 = 175 blocks
885 - 15
870
222 - 100 = ?
122
200 - 19
181
There are 500 animals at the zoo. 164 of the animals are reptiles. How many of the animals are NOT reptiles?
500 - 164 = 336 animals
987 - 598
389
987 - 10 = ?
977
400 - 254
146
Everett had 233 balloons. 122 balloons flew away. How many does he have now?
233 - 122 = 111
900 - 600
300
987 - 100 = ?
887
Ryker has 752 Legos. He builds a spaceship with 345 of them. How many does he have left?
752 - 345 = 407
201 - 124
77
Gracelyn has $251 dollars. She spends $46. How much money does she have left?
251-46 = 205