1.5×1052.33×0.5×424.6+18.7+15.41.2×2.5+0.8×2.52.05÷0.82+33.69.07-22.78÷3.4.

发布时间:2020-08-08 22:42:31

1.5×1052.33×0.5×424.6+18.7+15.41.2×2.5+0.8×2.52.05÷0.82+33.69.07-22.78÷3.4.

网友回答

解:(1)1.5×105        
=1.5×(100+5)
=1.5×100+1.5×5
=157.5;
(2)2.33×0.5×4  
=2.33×(0.5×4)
=2.33×2
=4.66;
(3)24.6+18.7+15.4
=24.6+15.4+18.7
=40+18.7
=58.7;
(4)1.2×2.5+0.8×2.5  
=2.5×(1.2+0.8)
=2.5×2
=5;
(5)2.05÷0.82+33.6 
=2.5+33.6
=36.1;
(6)9.07-22.78÷3.4
=9.07-6.7
=2.37;
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