1
2x2=
4
20+20=
40
6-3
3
1+1=
2
2+2=
4
6x2=
12
60+30
90
23-7=
16
4+4=
8
32+3=
35
50+20=
70
5'10'15'20'___'30'35'__
25 40
200+200=
400
6+6=
12
70+10=
80
8+8
16
70+30=
100
200+300=
500
10+3=
13
170
2'4'6'__ 10 __14'
8, 12
10+100=
110
50+50=
100
30+30=
60
45+5=
50