题目内容
能简便计算的要简便计算.
×4÷
×4
÷7+
×
(
×
+
÷
)÷57%
| 1 |
| 4 |
| 1 |
| 4 |
| 8 |
| 13 |
| 1 |
| 7 |
| 5 |
| 13 |
(
| 7 |
| 5 |
| 5 |
| 14 |
| 10 |
| 3 |
| 2 |
| 3 |
(1)
×4÷
×4,
=1÷
×4,
=4×4,
=16;
(2)
÷7+
×
,
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(3)(
×
+
÷
)÷57%,
=(
+5)÷57%,
=5
÷57%,
=
×
,
=
.
| 1 |
| 4 |
| 1 |
| 4 |
=1÷
| 1 |
| 4 |
=4×4,
=16;
(2)
| 8 |
| 13 |
| 1 |
| 7 |
| 5 |
| 13 |
=
| 8 |
| 13 |
| 1 |
| 7 |
| 1 |
| 7 |
| 5 |
| 13 |
=(
| 8 |
| 13 |
| 5 |
| 13 |
| 1 |
| 7 |
=1×
| 1 |
| 7 |
=
| 1 |
| 7 |
(3)(
| 7 |
| 5 |
| 5 |
| 14 |
| 10 |
| 3 |
| 2 |
| 3 |
=(
| 1 |
| 2 |
=5
| 1 |
| 2 |
=
| 11 |
| 2 |
| 100 |
| 57 |
=
| 550 |
| 57 |
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