addition
500+500=
1,000
1,000-500=
500
5 x 5=
25
7 x 12=
84
5+5=
10
600+600=
1,200
1,200-600=
600
1 x 1 =
1
6 x 9=
54
5 x 5=
25
700+700=
1,400
1,400-700=
700
1 x 3=
3
9 x 7 =
63
2 x 4 =
8
800+800=
1,600
1,600-800
800
1 x 4=
4
4 x 8 =
32
7-7=
0
900+900=
1,800
1,800-900=
900
1 x 5=
5
120+ 200 x 5
1,900
5+6=
11