怎样简便就怎样算.332×4+68×41.35-0.87+0.65-0.1315×4×2519.92+14.4-9.9278×1016.9+0.1-6.9+0.1.-数学

题目简介

怎样简便就怎样算.332×4+68×41.35-0.87+0.65-0.1315×4×2519.92+14.4-9.9278×1016.9+0.1-6.9+0.1.-数学

题目详情

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.
题型:解答题难度:中档来源:不详

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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