问题
解答题
怎样计算简便就怎样算: 5.2×
101×6.7 (
|
答案
(1)5.2×
+25%+1.8×0.25,1 4
=5.2×0.25+0.25+1.8×0.25,
=(5.2+1+1.8)×0.25,
=8×0.25,
=2;
(2)101×6.7,
=(100+1)×6.7,
=100×6.7+6.7,
=670+6.7,
=676.7;
(3)(
-1 3
)÷1 4
,1 12
=
×12-1 3
×12,1 4
=4-3,
=1.