Show:
Addition
Expanded Form
10 more, 10 less, 100 more, 100 less
Subtraction
Challenge
100

596+98=

694

100

375

300+70+5

100

10 less than 325

315

100

892-37=

55

100

300+30+5 (+) 200+50+6=

500+90+1

200

324+169=

493

200

255

200+50+5

200

100 more than 521

621

200

163-85=

78

200

200+60+5 (+) 200+60+8=

500+30+3

300

488+225=

713

300

760

700+60

300

10 more than 658

668

300

405-64=

341

300

500-266=

234

400

727+692=

1419

400

108

100+8 or 100+0+8

400

10 less than 101

91

400

300-88=

212

400

5x5=

25

500

916+896=

1812

500

1452

1000+400+50+2

500

100 less than 134

34

500

502-167=

335

500

6x4=

24

600

797+705=

1502

600

3521

3000+500+20+1

600

100 more than 1562

1662

600

700-679=

21

600

9x5=

45