6×6=
23+45=
28﹣16=
41﹣7=
2×4=
4×5=
40+21=
80﹣6=
3×5=
4×4=
5×2=
5×5=
12+31=
40﹣7=
17+18=
35﹣20=
43﹣9=
15+6=
6×4=
5×6+4=
(个)
6×9=
8×7=
9+57=
3×4+9=
22-4=
0×8=
18+60=
9×3=
3×9-2=
20-6=
7×8=
26+5=
6×7=
6×9+1=
6×1=