问题
解答题
计算下面各题,能简算的要简算.
12.5×16×0.5
4.8÷0.16÷0.3
48.7-32.76÷8.4
0.57×102.
答案
(1)12.5×16×0.5,
=12.5×(2×8)×0.5,
=(12.5×8)×(2×0.5),
=100×1,
=100;
(2)4.8÷0.16÷0.3,
=4.8÷(0.16×0.3),
=4.8÷0.048,
=100;
(3)48.7-32.76÷8.4,
=48.7-3.9,
=44.8;
(4)0.57×102,
=0.57×(100+2),
=0.57×100+0.57×2,
=57+1.14,
=58.14.