题目内容
(1)(
×3.75÷1
)+(
+
÷2
÷3)
(2)(1-
+
-
+
)×(
×1
÷
)
(3)(3.6×
-24÷200)÷1
+
×0.2
(4)2
+0.039÷[
×(2.31÷0.077)]-0.526.
| 22 |
| 5 |
| 5 |
| 7 |
| 1 |
| 3 |
| 2 |
| 3 |
| 2 |
| 9 |
(2)(1-
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 5 |
| 4 |
| 15 |
| 2 |
| 5 |
| 4 |
| 15 |
(3)(3.6×
| 1 |
| 20 |
| 1 |
| 5 |
| 11 |
| 4 |
(4)2
| 1 |
| 2 |
| 1 |
| 20 |
(1)(
×3.75÷1
)+(
+
÷2
÷3)
=(
×
×
)+(
+
×
×
)
=9
+(
+
)
=9
+
=10
;
(2)(1-
+
-
+
)×(
×1
÷
)
=(1-
+
-
+
)×(
×
×
)
=
×
×
×
=1
;
(3)(3.6×
-24÷200)÷1
+
×0.2
=(3.6×0.05-24÷200)÷1.2+3.75×0.2
=(0.18-0.12)÷1.2+0.75
=0.06÷1.2+0.75
=0.05+0.75
=0.8;
(4)2
+0.039÷[
×(2.31÷0.077)]-0.526
=2.5+0.039÷[0.05×30]-0.526
=2.5+0.039÷1.5-0.526
=2.5+0.026-0.526
=2.
| 22 |
| 5 |
| 5 |
| 7 |
| 1 |
| 3 |
| 2 |
| 3 |
| 2 |
| 9 |
=(
| 22 |
| 5 |
| 15 |
| 4 |
| 7 |
| 12 |
| 1 |
| 3 |
| 2 |
| 3 |
| 9 |
| 20 |
| 1 |
| 3 |
=9
| 5 |
| 8 |
| 1 |
| 3 |
| 1 |
| 10 |
=9
| 5 |
| 8 |
| 13 |
| 30 |
=10
| 7 |
| 120 |
(2)(1-
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 5 |
| 4 |
| 15 |
| 2 |
| 5 |
| 4 |
| 15 |
=(1-
| 30 |
| 60 |
| 20 |
| 60 |
| 15 |
| 60 |
| 12 |
| 60 |
| 4 |
| 15 |
| 7 |
| 5 |
| 15 |
| 4 |
=
| 47 |
| 60 |
| 4 |
| 15 |
| 7 |
| 5 |
| 15 |
| 4 |
=1
| 29 |
| 300 |
(3)(3.6×
| 1 |
| 20 |
| 1 |
| 5 |
| 11 |
| 4 |
=(3.6×0.05-24÷200)÷1.2+3.75×0.2
=(0.18-0.12)÷1.2+0.75
=0.06÷1.2+0.75
=0.05+0.75
=0.8;
(4)2
| 1 |
| 2 |
| 1 |
| 20 |
=2.5+0.039÷[0.05×30]-0.526
=2.5+0.039÷1.5-0.526
=2.5+0.026-0.526
=2.
练习册系列答案
相关题目