题目内容
混合运算.
×3.8-3.8×
×
+
×
×
÷
÷(
-
×40%)
| 11 |
| 9 |
| 2 |
| 9 |
| 7 |
| 13 |
| 3 |
| 4 |
| 3 |
| 4 |
| 6 |
| 13 |
| 101 |
| 5 |
| 1 |
| 2 |
| 2 |
| 5 |
| 12 |
| 7 |
| 2 |
| 3 |
| 1 |
| 4 |
(1)
×3.8-3.8×
=(
-
)×3.8
=1×3.8
=3.8;
(2)
×
+
×
=(
+
)×
=1×
=
;
(3)
×
÷
=
×
×
=
;
(4)
÷(
-
×40%)
=
÷(
-
×
)
=
÷(
-
)
=
÷
=
×
=
.
| 11 |
| 9 |
| 2 |
| 9 |
=(
| 11 |
| 9 |
| 2 |
| 9 |
=1×3.8
=3.8;
(2)
| 7 |
| 13 |
| 3 |
| 4 |
| 3 |
| 4 |
| 6 |
| 13 |
=(
| 7 |
| 13 |
| 6 |
| 13 |
| 3 |
| 4 |
=1×
| 3 |
| 4 |
=
| 3 |
| 4 |
(3)
| 101 |
| 5 |
| 1 |
| 2 |
| 2 |
| 5 |
=
| 101 |
| 5 |
| 1 |
| 2 |
| 5 |
| 2 |
=
| 101 |
| 4 |
(4)
| 12 |
| 7 |
| 2 |
| 3 |
| 1 |
| 4 |
=
| 12 |
| 7 |
| 2 |
| 3 |
| 1 |
| 4 |
| 2 |
| 5 |
=
| 12 |
| 7 |
| 2 |
| 3 |
| 1 |
| 10 |
=
| 12 |
| 7 |
| 17 |
| 30 |
=
| 12 |
| 7 |
| 30 |
| 17 |
=
| 360 |
| 119 |
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