3 运动定律与简便运算
递等式计算(能简算的要简算)
①(8.5﹣4)×10.32÷16 ②
×(
÷
+
) ③42×101﹣42
④(
+
﹣
)×72 ⑤7.6﹣1.26﹣1.74 ⑥(4.2﹣3.52÷1.6)×1.5.
6.42×1.01﹣6.42 80.7×8.7+8.07×13
×153﹣0.6×53
23.19+2.4+2.91+14.6 2.6×99+2.6 24×(
+
)
[
×(
)]
.
用你喜欢的方法计算.
(1)1080﹣63.58﹣36.42 (2)7.05×37+64×7.05﹣7.05
(3)[(
+1
)×
﹣0.75]÷
(4)85×0.75+15×75%
0.888×125×73+999×3 36.6×112.5+634×11
123+234+345+456+567+678 6
÷(1
×1.48)×2.96÷2
×
6789×6789﹣6790×6788
﹣(0.875×
+1÷6.5÷8)×1
18÷
+0.65×
﹣
×18+
×0.65.
计算下面各题,能简便的要简便.
①25×3.2×12.5 ②
﹣
﹣
+
③
×
+
×
④8÷[36×(
+
)] ⑤0.15÷0.25+0.75×1.2 ⑥1018﹣10517÷13+17×107.
用递等式计算,能简算的要简算.
(1)8470﹣104×65
(2)1.28+9.8+9.72+10.2
(3)168.1÷(4.3×2﹣0.4)
(4)
(5)(
+
)×20.
(1)28﹣[19.08+(3.2﹣0.299÷0.23)]×0.5
(2)64×1.25×2.5×5
(3)34.5×9.23﹣34.5+1.77×34.5
(4)(67.8+9.48)÷0.96﹣2.58×3.35.
脱式计算.
①8.82×15﹣100 ②15.8﹣
+14.2﹣
, ③21.6﹣0.8×4÷0.8×4
④3×3.7+3.6+5.3×3 ⑤5+0.45÷0.9﹣1.75 ⑥1110÷[56×(
﹣
)]
递等式计算
12.04﹣5.37﹣4.63 [6.85﹣(0.75+0.2)]÷0.5 0.125×0.25×32
9597×96 34÷[(35﹣14)×37].





×
+
÷
④
÷[(
+
)×
].
×101﹣
×898.
÷[(0.2+
)×0.375].
÷+(
+
)×45
+3.9++6.1.
(4)
+3.6) ②38×
③3.28×0.75+1.72×
(3)
.
×1.25= 101×82﹣82= 8.8÷8+1.9=
×10=
=
=
=
﹣
)×72].
×
+
÷
(4)
×[
﹣(
﹣
)]
﹣[(
+
)÷
]
×5+
÷
.
0.56×0.7+0.07×5.6.
+
﹣
)
+
)÷
+
10÷[
﹣(
÷
+
)].
[43.3×(2﹣75%)+7]×
,
.
+
+
25×1.25×32
×
+
×
.
﹣
+
)
+
+
+
.
÷
﹣
×2
×
+
×
=x:
2x﹣3.57+1.43=10.
÷
+
×
.
+
)×15×17 19÷[(
+
)÷
].
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