| 计算下面各题. 720+280÷5 | 36.5×1.4-8.51÷3.7 |
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(156×
| (
| [4-(
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=720+56,
=776;
(2)36.5×1.4-8.51÷3.7,
=51.1-2.3,
=48.4;
(3)
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=
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=
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| 20 |
(4)(156×
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| 13 |
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=(48-26)×
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=22×
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=16;
(5)(
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=
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=
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(6)[4-(
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=[4-
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=
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=
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