题目内容
| 脱式计算. 67+35×5 | 89-32×2 | 16×7-57 | 420÷6+35 | 45÷5×9. |
(1)67+35×5,
=67+175,
=242;
(2)89-32×2,
=89-64,
=25;
(3)16×7-57,
=112-57,
=55;
(4)420÷6+35,
=70+35,
=105;
(5)45÷5×9,
=9×9,
=81.
=67+175,
=242;
(2)89-32×2,
=89-64,
=25;
(3)16×7-57,
=112-57,
=55;
(4)420÷6+35,
=70+35,
=105;
(5)45÷5×9,
=9×9,
=81.
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