问题
解答题
怎样算简便就怎样算
|
答案
(1)5.5×17.3+6.7×5.5,
=5.5×(17.3+6.7),
=5.5×24,
=132;
(2)4×3.09×0.25,
=(4×0.25)×3.09,
=1×3.09,
=3.09;
(3)9.07-22.78÷3.4,
=9.07-6.7,
=2.37.
怎样算简便就怎样算
|
(1)5.5×17.3+6.7×5.5,
=5.5×(17.3+6.7),
=5.5×24,
=132;
(2)4×3.09×0.25,
=(4×0.25)×3.09,
=1×3.09,
=3.09;
(3)9.07-22.78÷3.4,
=9.07-6.7,
=2.37.