问题 解答题
怎样简便就怎样算.
332×4+68×4
1.35-0.87+0.65-0.1315×4×25
19.92+14.4-9.9278×1016.9+0.1-6.9+0.1.
答案

(1)332×4+68×4,

=(332+68)×4,

=400×4,

=1600;

(2)1.35-0.87+0.65-0.13,

=(1.35+0.65)-(0.87+0.13),

=2-1,

=1;

(3)15×4×25,

=15×(4×25),

=15×100,

=1500;

(4)19.92+14.4-9.92,

=(19.92-9.92)+14.4,

=10+14.4,

=24.4;

(5)78×101,

=78×100+78×1,

=7878;

(6)6.9+0.1-6.9+0.1,

=(6.9-6.9)+(0.1+0.1),

=0+0.2,

=0.2.

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