3 运动定律与简便运算
脱式计算.(能简算的要简算.)
(1)(
﹣
)÷
+
(2)19÷(
+
) (3)55
÷11
(4)0.6×
+60%×
+
×
(5)(
+
﹣
)×24 (6)5×(
+
)﹣
.
计算下面各题.(能简算的要简算)
3.68×〔1÷(
﹣2.09)〕
×(
+
)+
(
+
)×(
﹣
)
(4﹣3.5×
)÷
2﹣(11.9﹣8.4×
) 4.97×
+4.97×
.





×12×
×16 (
﹣
)÷
×
+
÷
÷(
+
)
×
+
÷
﹣
÷
×
.
﹣
)×24
÷
+
×
3﹣
×
﹣
+
×
÷2.
.
×
+
(2)3﹣
÷
﹣
(3)(0.75﹣
)×(
+
)
+
+
+
﹣(
﹣
)
+
﹣
﹣
+
+
﹣
﹣
﹣
+
﹣
+
.
÷(
﹣
)×
12×(
+
﹣
)
×
+
÷9
×[
÷(
﹣
)].
+
)]÷
×
÷(
﹣
) 75﹣7.5+25﹣42
+
×
+
0.8×4×12.5×2.5 65﹣40÷1
×12.5%
﹣
)×24 (
×
)×
÷(
÷
+
) 1.25×38+125%×3﹣5÷4.
÷
+
÷
+1÷125% 63×(
﹣
)﹣0.125.
÷
÷(3﹣
﹣
) 48×(
﹣
+
) (15﹣14×
)÷
+
+
+
×(
+
)
×25﹣8÷
÷〔
﹣(
+
)〕
﹣
÷
﹣
(51﹣
)×
﹣
×
+
÷(
﹣
×
)
×[(
﹣
)÷
].
×
+
×
+
)×36
×(
﹣
)﹣
(27÷
﹣3÷
)×
.
(2)
(3)
(5)
.


.
÷
+
×
+
×
+
﹣
)÷
.
×
÷
×
×13﹣
÷〔
×(1﹣
)〕
÷
+
×
﹣
﹣
﹣
÷
.
.
×
=
+
÷1)×4=
×
﹣
)=
÷27=
﹣
×
÷(
)
×3.6+5.2×0.5+1.2×50%
﹣(
+
)]÷
11.32﹣(7
+1.32) 89×
.
÷
÷
(2)
÷4×
(3)
÷
+
×
÷〔
﹣(
)〕 (5)
×(
+
)÷
(6)〔
﹣(
+
)〕÷
.
×
×
×
②
×
+
×
③
÷[(
+
)×
] ④(
+
×
)÷
.
×16×
÷12÷
÷[(
﹣
)×24]
×
+
÷
+
+
×
÷(
+
)
×45+
÷
﹣
×
(
+
)÷
.
+
)×24.
+
+

+
﹣
﹣
﹣
+
2﹣
.
+
)÷
+
13÷(
+
)×
31×19.97+199.7×6.8+199.7×0.1
+
)÷0.25 2﹣
÷
﹣
÷
﹣
÷6.
×
+
×
;
÷[(
﹣
)×
];
×58+
;
÷6; 76×
; 24×(
+
+
).
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