题目内容
| 用递等式计算. 560÷10÷7 | 32×15+78 |
| 450-12×11 | 18×5×9 |
| 24×12÷6 | 320+70×4. |
(1)560÷10÷7,
=56÷7,
=8;
(2)32×15+78,
=480+78,
=558;
(3)450-12×11,
=450-132,
=318;
(4)18×5×9,
=90×9,
=810;
(5)24×12÷6,
=24×(12÷6),
=24×2,
=48;
(6)320+70×4,
=320+280,
=600.
=56÷7,
=8;
(2)32×15+78,
=480+78,
=558;
(3)450-12×11,
=450-132,
=318;
(4)18×5×9,
=90×9,
=810;
(5)24×12÷6,
=24×(12÷6),
=24×2,
=48;
(6)320+70×4,
=320+280,
=600.
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