3 运动定律与简便运算
用简便方法计算.
4.45+0.63+5.55 5.28﹣(2.9+1.28)
5.25+7.86﹣2.86+4.75 0.96一0.28+0.04一0.72.
计算下列各题.(前三题用简便算法)
6.33×101﹣6.33 3.7×28+3.7×2 25×125×4×0.08
10×0.2÷2.5 12.5×8÷2.5 (7.7+1.4)÷0.7.
用递等式计算,能简算的要简算:
9×
+
×9
+(
+
)×8 (5.6﹣1.6÷2)×2.5
(
+
+
)÷
1064﹣780÷0.75+8.25
÷2.25.





×
÷
[1﹣(
+
)]÷
×33+
.
÷4×
(2)
÷
÷
(3)
÷
+
÷
(5)(
﹣
)÷
(6)
×
+
.
÷
÷
×6+
×
÷
(
﹣
﹣
×
×
)÷
÷7+
×
(
﹣
)÷
+
.
×4×
×7+
﹣32×
.
÷[(
﹣
)÷5] 
15﹣
×
﹣
.
)×24 3﹣
÷
﹣
×
+
÷7 19÷[(
+
].
×
+
÷6
÷[
×(
﹣
)] 24×
×
÷〔(
+
)×
〕 [(
+
)÷
]÷1.2.
﹣
)×(
+
) 3.5÷[1.4×(0.1﹣0.05)]
×
+
÷5 6.7×101.
×
= 0÷623=
+
+
=
×0.25+
×
÷[1÷(
﹣
)].
÷4﹣
×8×
×1.25
.
×(1﹣
) 2.5×(3.52÷2.2+5.4) 3.8×1.2+18.9÷0.9 328﹣195÷13+45.
÷8+
×
.

×102.31+40
×102.31.
÷[
﹣(
+
)] (
﹣
)×15 13﹣3.79+9.7﹣6.21 8×0.4×12.5×2.5.
+4.8﹣
﹣
)×24].
﹣
)×45 (
+
)×(1﹣
)
×
÷
.
÷13+
×
×
÷
6﹣2
+1
5×32×12.5.
×17.6+36÷
+26.4×1.25.
×
÷
+
×
+
÷
12.5×0.32×25
+
)×
.
﹣3.36+5.625﹣5
.
÷[(
+
)×
] 12﹣
×7﹣
)×7×5
)÷
+
÷[(
﹣
)÷
].
粤公网安备 44130202000953号