计算+
﹣
18.76﹣3.47﹣0.530.75+
+
+
3﹣
+
3
+
+5
1﹣
﹣
.
用你喜欢的方法计算:
39×[
﹣(
+
)]÷
36×(
+
+
)
(3﹣1.4)÷1
×
﹣
×
÷
÷
.
灵活计算下面各题.
(1)4.87×1.25×0.8(2)(5.6﹣5.6×0.7)÷22.4
(3)3.7×9.9(4)8.56×7.5+8.56×2.5.
怎样简便就怎样算
35.6+(12.6﹣4.4)90÷0.4÷2.50.86×15.4﹣14.4×0.86
5.4÷0.6+(2.3﹣0.46)7.52×10.11.25×0.7×0.8.
计算,能简算的要简算.
(4﹣7.5×4)÷60.24÷+0.25×4 2.8×1.2÷4 45÷72÷1.25
7.2+[(7.8+2.2 )÷0.4].