name that math.

math

100

12+2=

14

200

59+51

=101

300

12=12+1=

13

400

1+1+9+1,000-2-7

1,003

500

123,-231

negetive 122

math

100

1+1

=2

200

34+20

54

300

90+1,000

1,o90

400

1-5

negetive 4

500

1=1+3=

4

math

100

3+3

=6

200

1=1+2=

3

300

1+5

=6

400

12x0

0

500

23=23+2=

25

math

100

5+5

=10

200

12+1

=13

300

9x5

45

400

1x1

1

500

1,945=1,945+1=

1,946

math

100

10+1

=11

200

7/8+1/2

13/8

300

31x0

0

400

8x1

8

500

1=51=

52