题目内容
脱式计算.
| 800-57×9 | (65+16)÷9 | 230×(140-132) | 24×5+24×7. |
(1)800-57×9,
=800-513,
=287;
(2)(65+16)÷9,
=81÷9,
=9;
(3)230×(140-132),
=230×8,
=1840;
(4)24×5+24×7,
=120+168,
=288.
=800-513,
=287;
(2)(65+16)÷9,
=81÷9,
=9;
(3)230×(140-132),
=230×8,
=1840;
(4)24×5+24×7,
=120+168,
=288.
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