题目内容
计算.(能简算的要简算)
①
×
÷
②
÷[(
+
)×
]
③
÷6+
×
④(
-
+
)÷
.
①
| 1 |
| 4 |
| 5 |
| 16 |
| 15 |
| 8 |
| 8 |
| 9 |
| 2 |
| 5 |
| 1 |
| 10 |
| 4 |
| 3 |
③
| 2 |
| 23 |
| 21 |
| 23 |
| 1 |
| 6 |
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 6 |
| 1 |
| 12 |
①
| 1 |
| 4 |
| 5 |
| 16 |
| 15 |
| 8 |
=
| 1 |
| 4 |
| 5 |
| 16 |
| 8 |
| 15 |
=
| 1 |
| 24 |
②
| 8 |
| 9 |
| 2 |
| 5 |
| 1 |
| 10 |
| 4 |
| 3 |
=
| 8 |
| 9 |
| 1 |
| 2 |
| 4 |
| 3 |
=
| 8 |
| 9 |
| 2 |
| 3 |
=
| 4 |
| 3 |
③
| 2 |
| 23 |
| 21 |
| 23 |
| 1 |
| 6 |
=
| 2 |
| 23 |
| 1 |
| 6 |
| 21 |
| 23 |
| 1 |
| 6 |
=(
| 2 |
| 23 |
| 21 |
| 23 |
| 1 |
| 6 |
=1×
| 1 |
| 6 |
=
| 1 |
| 6 |
④(
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 6 |
| 1 |
| 12 |
=(
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 6 |
=
| 1 |
| 3 |
| 1 |
| 4 |
| 1 |
| 6 |
=4-3+2,
=3.
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