问题 解答题
脱式计算,能简便的要简便计算.
14-11.3-1.754÷2.5÷0.4
3.2×0.28+0.28×6.880.3-33.3×0.5÷0.37.
答案

(1)14-11.3-1.7,

=14-(11.3+1.7),

=14-13,

=1;

(2)54÷2.5÷0.4,

=54÷(2.5×0.4),

=54÷1,

=54;

(3)3.2×0.28+0.28×6.8,

=(3.2+6.8)×0.28,

=10×0.28,

=2.8;

(4)80.3-33.3×0.5÷0.37,

=80.3-16.65÷0.37,

=80.3-45,

=35.3.

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