Mental Math
Regrouping
Regrouping
Subtracting Across Zeros
Word Problems
100

340-100=

240

100
330-116=
214
100
291-162=
129
100
300-107=
193
100

Brett had 352 Pokemon cards. He gave 118 Pokemon cards to Donald. How many cards does Brett

 have left?

352-118=234

200
310-10=
300
200
582-226=
356
200
528-256=
272
200
500-328
172
200

Anna's book is 634 pages. She has read 562 pages so far. How many pages does she have left?

634-562=72

300

550-100=

450

300
829-654=
175
300
656-383=
273
300
403-255=
148
300

There are 636 blue and red pencils in the school. 259 are blue. How many are red?

636-259=377

400

910-100=

810

400
321-123=
198
400
421-184=
237
400
708-249=
459
400

Mrs. Campbell has 500 pencils. The class uses 428. How many pencils does Mrs. Campbell have left?

500-428=72

500
786-10=
776
500
723-485=
238
500
768-579=
189
500
903-526=
377
500

Junior planted 603 seeds in the ground. 408 of the seeds grew into flowers. How many seeds did not grow into flowers?

603-408=195

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