问题
解答题
|
答案
(1)9.66÷3.22÷0.25,
=3÷0.25,
=12;
(2)19.6×10.1,
=19.6×(10+0.1),
=19.6×10+19.6×0.1,
=196+1.96,
=197.96;
(3)27.35×99+27.35,
=27.35×(99+1),
=27.35×100,
=2735;
(4)0.47×9.9,
=0.47×(10-0.1),
=0.47×10-0.47×0.1,
=4.7-0.047,
=4.653.