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脱式计算.(能用简便方法计算的要用简便方法计算)(1)7.6×(5.6-435)]÷(3.1−1110(2)[34−(12−13)]÷54÷7(3)(712+524−16)×48(4)237+159−437+549+347(5)257−(57−29)−79(6)(0÷5.87+1×1+7.83
题目详情
脱式计算.(能用简便方法计算的要用简便方法计算)
(1)7.6×(5.6-4
)]÷(3.1−1
(2)[
−(
−
)]÷
÷7
(3)(
+
−
)×48
(4)2
+1
−4
+5
+3
(5)2
−(
−
)−
(6)(0÷5.87+1×1+7.83÷1)÷8.83
(7)0.125×3
+
×5.25-12.5%
(8)(7.2+7
+7.2+7
)×25%
(9)9999×7+1111×37
(10)
+9
+99
+999
+9999
(11)6÷[9+(11-8×0.25)÷1.5]×2
(12)6666×8+1111×52.
(1)7.6×(5.6-4
3 |
5 |
1 |
10 |
(2)[
3 |
4 |
1 |
2 |
1 |
3 |
5 |
4 |
(3)(
7 |
12 |
5 |
24 |
1 |
6 |
(4)2
3 |
7 |
5 |
9 |
3 |
7 |
4 |
9 |
4 |
7 |
(5)2
5 |
7 |
5 |
7 |
2 |
9 |
7 |
9 |
(6)(0÷5.87+1×1+7.83÷1)÷8.83
(7)0.125×3
3 |
4 |
1 |
8 |
(8)(7.2+7
1 |
5 |
1 |
5 |
(9)9999×7+1111×37
(10)
6 |
7 |
6 |
7 |
6 |
7 |
6 |
7 |
6 |
7 |
(11)6÷[9+(11-8×0.25)÷1.5]×2
1 |
2 |
(12)6666×8+1111×52.
▼优质解答
答案和解析
(1)7.6×(5.6-4
)
=7.6×1
=7.6;
(2)[
−(
−
)]÷
÷7
=[
-
]÷7
=
×
=
;
(3)(
+
−
)×48
=
×48+
×48-
×48
=28+10-8
=30;
(4)2
+1
−4
+5
+3
=2
+3
-4
+(1
+5
)
=1
+7
=8
;
(5)2
−(
−
)−
=2
-
+
-
3 |
5 |
=7.6×1
=7.6;
(2)[
3 |
4 |
1 |
2 |
1 |
3 |
5 |
4 |
=[
3 |
4 |
1 |
6 |
=
7 |
12 |
1 |
7 |
=
1 |
12 |
(3)(
7 |
12 |
5 |
24 |
1 |
6 |
=
7 |
12 |
5 |
24 |
1 |
6 |
=28+10-8
=30;
(4)2
3 |
7 |
5 |
9 |
3 |
7 |
4 |
9 |
4 |
7 |
=2
3 |
7 |
4 |
7 |
3 |
7 |
5 |
9 |
4 |
9 |
=1
4 |
7 |
=8
4 |
7 |
(5)2
5 |
7 |
5 |
7 |
2 |
9 |
7 |
9 |
=2
5 |
7 |
5 |
7 |
2 |
9 |
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