题目内容
计算下面各题.(能够简便计算的要求简便计算)
①730-240÷15×16
②
×
+
×
③
+
×3
④[1一(
-
)]×
.
①730-240÷15×16
②
| 7 |
| 9 |
| 5 |
| 11 |
| 2 |
| 9 |
| 5 |
| 11 |
③
| 3 |
| 4 |
| 3 |
| 4 |
④[1一(
| 1 |
| 2 |
| 1 |
| 4 |
| 2 |
| 3 |
①730-240÷15×16,
=730-16×16,
=730-256,
=474;
②
×
+
×
,
=(
+
)×
,
=1×
,
=
;
③
+
×3,
=
×(1+3),
=
×4,
=3;
④[1一(
-
)]×
,
=[1-
]×
,
=
×
,
=
.
=730-16×16,
=730-256,
=474;
②
| 7 |
| 9 |
| 5 |
| 11 |
| 2 |
| 9 |
| 5 |
| 11 |
=(
| 7 |
| 9 |
| 2 |
| 9 |
| 5 |
| 11 |
=1×
| 5 |
| 11 |
=
| 5 |
| 11 |
③
| 3 |
| 4 |
| 3 |
| 4 |
=
| 3 |
| 4 |
=
| 3 |
| 4 |
=3;
④[1一(
| 1 |
| 2 |
| 1 |
| 4 |
| 2 |
| 3 |
=[1-
| 1 |
| 4 |
| 2 |
| 3 |
=
| 3 |
| 4 |
| 2 |
| 3 |
=
| 1 |
| 2 |
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