问题
解答题
计算,能简算的要简算:
|
答案
(1)2.65+1.7+1.35+8.3,
=(2.65+1.35)+(1.7+8.3),
=4+10,
=14;
(2)2.7×2×0.5,
=2.7×(2×0.5),
=2.7×1,
=2.7;
(3)18×5+12×5,
=(18+12)×5,
=30×5,
=150.
计算,能简算的要简算:
|
(1)2.65+1.7+1.35+8.3,
=(2.65+1.35)+(1.7+8.3),
=4+10,
=14;
(2)2.7×2×0.5,
=2.7×(2×0.5),
=2.7×1,
=2.7;
(3)18×5+12×5,
=(18+12)×5,
=30×5,
=150.