题目内容
计算,能简算的要简算.
÷8+
×
×
÷
×
+
×[9÷(
×9)].
| 7 |
| 13 |
| 1 |
| 8 |
| 6 |
| 13 |
| 11 |
| 23 |
| 7 |
| 9 |
| 22 |
| 23 |
| 1 |
| 2 |
| 2 |
| 3 |
| 3 |
| 10 |
| 1 |
| 9 |
| 1 |
| 9 |
(1)
÷8+
×
,
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(2)
×
÷
,
=
×
×
=
;
(3)
×
+
,
=
+
,
=
;
(4)
×[9÷(
×9)],
=
×[9÷1],
=
×9,
=1.
| 7 |
| 13 |
| 1 |
| 8 |
| 6 |
| 13 |
=
| 7 |
| 13 |
| 1 |
| 8 |
| 1 |
| 8 |
| 6 |
| 13 |
=(
| 7 |
| 13 |
| 6 |
| 13 |
| 1 |
| 8 |
=1×
| 1 |
| 8 |
=
| 1 |
| 8 |
(2)
| 11 |
| 23 |
| 7 |
| 9 |
| 22 |
| 23 |
=
| 11 |
| 23 |
| 7 |
| 9 |
| 23 |
| 22 |
=
| 7 |
| 18 |
(3)
| 1 |
| 2 |
| 2 |
| 3 |
| 3 |
| 10 |
=
| 1 |
| 3 |
| 3 |
| 10 |
=
| 19 |
| 30 |
(4)
| 1 |
| 9 |
| 1 |
| 9 |
=
| 1 |
| 9 |
=
| 1 |
| 9 |
=1.
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