题目内容
怎样简便就怎样计算.
3.5×0.8+5.5×80%+
,
920÷40+23×50.
3.5×0.8+5.5×80%+
| 4 |
| 5 |
920÷40+23×50.
(1)3.5×0.8+5.5×80%+
,
=3.5×0.8+5.5×0.8+0.8,
=0.8×(3.5+5.5+1),
=0.8×10,
=8;
(2)920÷40+23×50,
=23+1150,
=1173.
| 4 |
| 5 |
=3.5×0.8+5.5×0.8+0.8,
=0.8×(3.5+5.5+1),
=0.8×10,
=8;
(2)920÷40+23×50,
=23+1150,
=1173.
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