
计算:(1)(+1)+(-5)(2)(-2)×(-7)(3)(-3)×(-5)-60÷(-2)(4)(29?16+34)×36(5)?
计算:(1)(+1)+(-5)(2)(-2)×(-7)(3)(-3)×(-5)-60÷(-2)(4)(29?16+34)×36(5)?4+(1?0.2÷35)×(?3)(...
计算:(1)(+1)+(-5)(2)(-2)×(-7)(3)(-3)×(-5)-60÷(-2)(4)(29?16+34)×36(5)?4+(1?0.2÷35)×(?3)(6)?23?14×(1?(?3)2).
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(1)原式=-(5-1)
=-4;
(2)原式=14;
(3)原式=15+30
=45;
(4)原式=8-6+27
=29;
(5)原式=-4-3-1
=-8;
(6)原式=-8-
×(-8)
=-8+2
=-6.
=-4;
(2)原式=14;
(3)原式=15+30
=45;
(4)原式=8-6+27
=29;
(5)原式=-4-3-1
=-8;
(6)原式=-8-
1 |
4 |
=-8+2
=-6.
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