
能简算的要简算:19.28+1.82÷0.7 10.56×3.75-3.75×0.56 (71.2-71.2×0.9)÷0.25 14.53-(2.64+
能简算的要简算:19.28+1.82÷0.710.56×3.75-3.75×0.56(71.2-71.2×0.9)÷0.2514.53-(2.64+0.53)-1.361...
能简算的要简算:19.28+1.82÷0.7 10.56×3.75-3.75×0.56 (71.2-71.2×0.9)÷0.25 14.53-(2.64+0.53)-1.36 13.5÷[(2-0.8)×4.5] [(6.1-4.6)÷0.8-1]÷0.4.
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(1)19.28+1.82÷0.7,
=19.28+2.6,
=21.88;
(2)10.56×3.75-3.75×0.56,
=(10.56-0.56)×3.75,
=10×3.75,
=37.5;
(3)(71.2-71.2×0.9)÷0.25,
=(1-0.9)×71.2÷
,
=7.12×4,
=28.48;
(4)14.53-(2.64+0.53)-1.36,
=(14.53-0.53)-(2.64+1.36),
=14-4,
=10;
(5)13.5÷[(2-0.8)×4.5],
=13.5÷4.5÷1.2,
=3÷1.2,
=2.5;
(6)[(6.1-4.6)÷0.8-1]÷0.4,
=[1.5÷0.8-1]÷0.4,
=[1.875-1]÷0.4,
=0.875÷0.4,
=2.1875.
=19.28+2.6,
=21.88;
(2)10.56×3.75-3.75×0.56,
=(10.56-0.56)×3.75,
=10×3.75,
=37.5;
(3)(71.2-71.2×0.9)÷0.25,
=(1-0.9)×71.2÷
1 |
4 |
=7.12×4,
=28.48;
(4)14.53-(2.64+0.53)-1.36,
=(14.53-0.53)-(2.64+1.36),
=14-4,
=10;
(5)13.5÷[(2-0.8)×4.5],
=13.5÷4.5÷1.2,
=3÷1.2,
=2.5;
(6)[(6.1-4.6)÷0.8-1]÷0.4,
=[1.5÷0.8-1]÷0.4,
=[1.875-1]÷0.4,
=0.875÷0.4,
=2.1875.
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