问题
解答题
计算(能简算的要简算)
99×8.4+0.84
(37.62+20.76)÷0.042
4.8×6.2÷12.4
3.75÷[0.03×(1.34-0.84)].
答案
(1)99×8.4+0.84
=990×0.84+0.84×1,
=(990+1)×0.84,
=991×0.84,
=832.44;
(2)(37.62+20.76)÷0.042
=58.38÷0.042,
=843÷0.6,
=1390;
(3)4.8×6.2÷12.4
=29.76÷12.4,
=2.4;
(4)3.75÷[0.03×(1.34-0.84)]
=3.75÷[0.03×0.5],
=3.75÷0.015,
=250.