题目内容
| 70-70÷70= | 420÷20×8= | 840÷30= |
| 750÷50+80= | 300÷2÷5= |
(1)70-70÷70,
=70-1,
=69;
(2)420÷20×8,
=21×8,
=168;
(3)840÷30,
=28;
(4)750÷50+80,
=15+80,
=95;
(5)300÷2÷5,
=150÷5,
=30.
=70-1,
=69;
(2)420÷20×8,
=21×8,
=168;
(3)840÷30,
=28;
(4)750÷50+80,
=15+80,
=95;
(5)300÷2÷5,
=150÷5,
=30.
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