410 + 263 = ?
410 --> +200 ---> 610 ---> +60 ---> 670 ---> +3 ---> 673
199 + 257 = ?
200 + 256 = 456
380 + 220 = ?
500
364 + 500 = ?
864
The second grade class is planting flowers. They planted some but have 15 left to plant. If they had 96 to begin with, how many have they already planted?
96 - 15 = 81
They have already planted 81 plants.
275 + 350 = ?
350 ---> +200 ---> 550 ---> +50 ---> 600 ---> +20 ---> 620 ---> +5 ---> 625
297 + 478 = ?
300 + 475 = 775
477 + 233 = ?
710
425 + ____ = 725
300
The pet store has 275 fish for sale. If 50 are sold, how many are left?
275 - 50 = 225
There are 225 fish left for sale.
395 + 505 =?
265 - 134 = ?
131
535 - 200 = ?
335
Billy Bob has 124 marbles. Timmy Tom has 278 marbles. How many marbles do they have altogether?
124 + 278 = 402
They have 402 marbles altogether.
785 - ? = 250
785 ---> -200 ---> 585 ---> -50 ---> 535
CHECK IT!
535 ---> +200 ---> 735 ---> +50 ---> 785
798 - 298 = ?
800 - 300 = 500
549 - 239 = ?
310
882 - _____ = 582
300
The chicken farm has 378 chickens. 123 chickens runaway. How many chickens are left at the farm?
378 - 123 = 255
There are 255 chickens left at the farm.
? - 527 = 117
527 ---> + 100 ---> 627 ---> +10 ---> 637 ---> +7 ---> 644
CHECK IT!
644 ---> -500 ---> 144 ---> - 20 --> 124 ---> -7 ---> 117
892 - 302 = ?
900 - 310 = 590
400 - 73 = ?
327
25 tens + 13 tens = ?
38 tens = 380
The shoe store has 783 pairs of shoes. There are 56 pairs of red shoes and 89 pairs of blue shoes. After selling some, there are 498 left. How many pairs of shoes were sold?
783 - ? = 498
783 - 498 = ?
785 - 500 = 285
285 pairs of shoes were sold.