Addition
6+9=
15
10-5=
5
5x8=
40
1/4
28 divide by 7 =
4
15+15=
30
20-15=
5
6x6=
36
3/8
three-eights
32 divide by 8 =
4
20+30=
50
15-6=
9
7x7=
49
2/5
two-fifths
36 divide by 6 =
6
42+7=
49
30-15=
15
6x9=
54
6/10
six-tenths
45 divide by 5 =
9
66+7=
73
88-9=
79
9x9=
81
6/8
six-eights
60 divide by 6 =
10