问题
解答题
0.78÷3.9×4.2
7.9÷3.16-5.4×0.2
3.2÷l.6×4
4.32-2.46÷6.
答案
(1)0.78÷3.9×4.2,
=0.2×4.2,
=0.84;
(2)7.9÷3.16-5.4×0.2,
=2.5-1.08,
=1.42;
(3)3.2÷l.6×4,
=2×4,
=8;
(4)4.32-2.46÷6,
=4.32-0.41,
=3.91.
0.78÷3.9×4.2
7.9÷3.16-5.4×0.2
3.2÷l.6×4
4.32-2.46÷6.
(1)0.78÷3.9×4.2,
=0.2×4.2,
=0.84;
(2)7.9÷3.16-5.4×0.2,
=2.5-1.08,
=1.42;
(3)3.2÷l.6×4,
=2×4,
=8;
(4)4.32-2.46÷6,
=4.32-0.41,
=3.91.