30×6=180 65+9=74 5×700=3500 72÷8=9
400×5=2000 810-510=300 63÷7=9 230+160=390
1
6 +
5
6 =1
7
9 -
5
9 =
2
9
3
8 +
5
8 =1 1-
3
7 =
4
7
30×6=180 65+9=74 5×700=3500 72÷8=9
400×5=2000 810-510=300 63÷7=9 230+160=390
1
6 +
5
6 =1
7
9 -
5
9 =
2
9
3
8 +
5
8 =1 1-
3
7 =
4
7