题目内容
神机妙算你最棒!(计算下面的题,能简算的要简算,写出简算步骤)
①(5906-325×18)÷1.4
②
×88+11×
③5×(
+
)-
④4÷[
×(
-
].
①(5906-325×18)÷1.4
②
| 1 |
| 99 |
| 1 |
| 99 |
③5×(
| 3 |
| 20 |
| 1 |
| 15 |
| 3 |
| 4 |
④4÷[
| 5 |
| 6 |
| 2 |
| 5 |
| 1 |
| 10 |
①(5906-325×18)÷1.4
=(5906-5850)÷1.4,
=56÷1.4,
=40;
②
×88+11×
,
=(88+11)×
,
=99×
,
=1;
③5×(
+
)-
,
=5×
+5×
-
,
=
+
-
,
=
-
+
,
=
;
④4÷[
×(
-
]
=4÷[
×
],
=4÷
,
=16.
=(5906-5850)÷1.4,
=56÷1.4,
=40;
②
| 1 |
| 99 |
| 1 |
| 99 |
=(88+11)×
| 1 |
| 99 |
=99×
| 1 |
| 99 |
=1;
③5×(
| 3 |
| 20 |
| 1 |
| 15 |
| 3 |
| 4 |
=5×
| 3 |
| 20 |
| 1 |
| 15 |
| 3 |
| 4 |
=
| 3 |
| 4 |
| 1 |
| 3 |
| 3 |
| 4 |
=
| 3 |
| 4 |
| 3 |
| 4 |
| 1 |
| 3 |
=
| 1 |
| 3 |
④4÷[
| 5 |
| 6 |
| 2 |
| 5 |
| 1 |
| 10 |
=4÷[
| 5 |
| 6 |
| 3 |
| 10 |
=4÷
| 1 |
| 4 |
=16.
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