问题
解答题
6.做一做:
(1)7.68÷0.5
(2)3.6÷1.25
(3)12.9÷(0.43×2)
(4)8.88÷1.25÷32.
答案
(1)7.68÷0.5
=(7.68×2)÷(0.5×2)
=15.36÷1
=15.36;
(2)3.6÷1.25
=(3.6×8)÷(1.25×8)
=28.8÷10
=2.88;
(3)12.9÷(0.43×2)
=12.9÷0.86
=15;
(4)8.88÷1.25÷32
=8.88÷(1.25×32)
=8.88÷(1.25×8×4)
=8.88÷40
=0.222.