79﹣8×7 32÷4×9 (81﹣45)÷6
7×3=
32÷8=
24÷3=
21÷9=
42÷6=
5×9=
64÷8=
18÷4=
写作 读作
1.5×1= 910÷70= 2.2﹣1.9= 6÷7= 435+199=
+= -= ÷= 20×= ×=
1.25×80%= = 1﹣0.375= 6÷0.2=
= 2.35+4.7= = 16×0.25=
= =