65-50= 12+9= 32+67= 5×7+30=
9×8= 6×6= 70+30= 7×9-9=
4×3+28= 7×5-7= 6×6+6= 82-(18+12)=
8×5=
7×6=
6×8=
6×7+7=
9×3=
7×7=
9×9=
8×3+8=
8×9=
4×8=
4×9=
7×6-7=
31-2=
92-50=
2×6=
2×2+4=
36+3=
66+9=
3×3=
5×2+5=
13+45=
42+8=
5×5=
4×3-2=
12+50=
45-6=
9×4+6=
17+31=
61-11-30=
95-19=
78-18=
8×6-6=
3×9=
76-(80-4)=
3×6= 40-7= 20+39= 7×8= 7×4+20=
35+6= 9×4= 34-6= 6×5= 42+28-34=
56-3= 54-21= 7×6= 2×8= 78-(8+9)=
5×7= 3×9= 42-9= 52-7= 9×9-8=
40+17= 18÷6= 3×4= 6×8-8=
14÷7= 8×9= 24÷6= 5×3+5=
4×=16
3× =9
6×=12
25÷=5
36÷=6
10÷=2
345﹣298= 0.64÷0.8= ﹣ = × =
1÷0.05= 0.25×40= 2÷ = ×25%=