
脱式计算(1)0.175÷0.25×4
脱式计算(1)0.175÷0.25×4(2)54÷(3.94+6.86)(3)12.8+2.04×9.5(4)4.5×0.9+5.5×0.9....
脱式计算(1)0.175÷0.25×4(2)54÷(3.94+6.86)(3)12.8+2.04×9.5(4)4.5×0.9+5.5×0.9.
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(1)0.175÷0.25×4,
=0.7×4,
=2.8;
(2)54÷(3.94+6.86),
=54÷10.8,
=5;
(3)12.8+2.04×9.5,
=12.8+19.38,
=32.18;
(4)4.5×0.9+5.5×0.9,
=(4.5+5.5)×0.9,
=10×0.9,
=9.
=0.7×4,
=2.8;
(2)54÷(3.94+6.86),
=54÷10.8,
=5;
(3)12.8+2.04×9.5,
=12.8+19.38,
=32.18;
(4)4.5×0.9+5.5×0.9,
=(4.5+5.5)×0.9,
=10×0.9,
=9.
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