题目内容
计算下面各题.
×
÷
(
+
)÷
+
4÷
-0.60.75×18÷0.15.
| 4 |
| 9 |
| 15 |
| 16 |
| 5 |
| 6 |
| 4 |
| 5 |
| 1 |
| 4 |
| 7 |
| 3 |
| 7 |
| 10 |
| 8 |
| 3 |
(1)
×
÷
,
=
×
×
,
=
;
(2)(
+
)÷
+
,
=(
+
)÷
+
,
=
×
+
,
=
+
,
=
,
=1
;
(3)4÷
-0.6,
=4×
-0.6,
=1.5-0.6,
=0.9;
(4)0.75×18÷0.15,
=0.75÷0.15×18,
=5×18,
=90.
| 4 |
| 9 |
| 15 |
| 16 |
| 5 |
| 6 |
=
| 4 |
| 9 |
| 15 |
| 16 |
| 6 |
| 5 |
=
| 1 |
| 2 |
(2)(
| 4 |
| 5 |
| 1 |
| 4 |
| 7 |
| 3 |
| 7 |
| 10 |
=(
| 16 |
| 20 |
| 5 |
| 20 |
| 7 |
| 3 |
| 7 |
| 10 |
=
| 21 |
| 20 |
| 3 |
| 7 |
| 7 |
| 10 |
=
| 9 |
| 20 |
| 14 |
| 20 |
=
| 23 |
| 20 |
=1
| 3 |
| 20 |
(3)4÷
| 8 |
| 3 |
=4×
| 3 |
| 8 |
=1.5-0.6,
=0.9;
(4)0.75×18÷0.15,
=0.75÷0.15×18,
=5×18,
=90.
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