问题
解答题
怎样简便就怎样计算.
|
答案
(1)1.25×8.8,
=1.25×(8×1.1),
=1.25×8×1.1,
=10×1.1,
=11;
(2)0.71×6.29+0.71×3.61,
=0.71×(6.29+3.61),
=0.71×10,
=7.1;
(3)36.6÷2×0.5,
=18.3×0.5,
=9.15.
怎样简便就怎样计算.
|
(1)1.25×8.8,
=1.25×(8×1.1),
=1.25×8×1.1,
=10×1.1,
=11;
(2)0.71×6.29+0.71×3.61,
=0.71×(6.29+3.61),
=0.71×10,
=7.1;
(3)36.6÷2×0.5,
=18.3×0.5,
=9.15.