easier
What is 1+1?
2
7+2=
9
15+15
30
40+40
80
90+90
180
What is 2+2?
4
8+3=
11
16+16
32
50+50
100
91+91
181
What is 3+3=
6
7+7
14
18+18
36
60+60
120
100+100
200
What is 4+4=
8
15+3
18
19+19
38
70+70
140
400+200
600
What is 10+10=
20
15+2
17
20+20
40
80+80
160
1,000+1,000
2,000