问题 解答题
计算,能简算的要简算.
3.25×0.45+6.75×0.45   7.5×102      5.64÷0.125÷8
26.9×0.48÷2.695.4×2.5×0.739.5×99+39.5.
答案

(1)3.25×0.45+6.75×0.45,

=(3.25+6.75)×0.45,

=10×0.45,

=4.5;

(2)7.5×102,

=7.5×(100+2),

=750+15,

=765;

(3)5.64÷0.125÷8,

=5.64÷(0.125×8),

=5.64÷1,

=5.64;

(4)26.9×0.48÷2.69,

=26.9÷2.69×0.48,

=1×0.48,

=0.48;

(5)5.4×2.5×0.7,

=13.5×0.7,

=9.45;

(6)39.5×99+39.5,

=39.5×(99+1),

=39.5×100,

=3950.

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