问题 解答题
计算,能简算的要简算:
2.65+1.7+1.35+8.32.7×2×0.518×5+12×5.
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.

解答题
问答题 简答题