计算下面各题.720+280÷536.5×1.4-8.51÷3.712÷23-25(156×413-26)×811(43+52)÷(2-32)[4-(34-38)]×429.-数学
题文
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答案
(1)720+280÷5, =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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(4)(156×
=(48-26)×
=22×
=16; (5)(
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题文
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答案
(1)720+280÷5, =720+56, =776; (2)36.5×1.4-8.51÷3.7, =51.1-2.3, =48.4; (3)
=
=
=
(4)(156×
=(48-26)×
=22×
=16; (5)(
=
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