1st grade math
1+3
4
10+10
20
10 times 1
10
2 times 10
20
3 times 10
30
2+3
5
10+20
30
1 times 20
2 times 30
50
3 times 20
60
3+7
10
10+40
50
1 times 30
30
2 times 60
120
3 times 30
90
3+8
11
10+50
60
1 times 40
40
2 times 70
140
3 times 40
120
3+9
12
10+60
70
1 times 50
50
2 times 80
160
3 times 50
150