subtraction no regroup
sub with regroup
sub with regroup 2
sub with regroup 3
sub across 0

100

33-21=
What is 12

100

73-47=
What is 26

100

327-143=
What is 184

100

123-56=
What is 67

100

108-49=
What is 59

200

57-36=
What is 21

200

63-28=
What is 35

200

426-356=
What is 70

200

216-147=
What is 69

200

602-345=
What is 257

300

149-37=
What is 112

300

174-91=
What is 83

300

714-352=
What is 362

300

364-279=
What is 85

300

807-679=
What is 128

400

637-417=
What is 220

400

428-219=
What is 209

400

658-294=
What is 364

400

746-598=
What is 148

400

600-368=
What is 232

500

986-543=
What is 443

500

924-516=
What is 408

500

817-636=
What is 181

500

820-435=
What is 385

500

900-527=
What is 373