Show:
Addition 1
Addition 2
Addition 3
Subtraction 1
Subtraction 2
100

2+5=

7

100

11+09=

19

100

002+008

10

100

8-2=

6

100

11-10=

1

200

7+8=

15

200

13+11=

24

200

276 + 100=

376

200

4-7=

3

200

13-23=

10

300

6+9=

16

300

11+23=

34

300

299+487=

786

300

9-9=

0

300

45-88=

43
400

9+3=

12

400

24+34=

58

400

655+311=

966

400

6-9=

3

400

32-64=

32

500

7+2=

9

500

56+89=

145

500

888=+777=

1,665

500

9-1=

8

500

99-00=

99