问题
解答题
怎样算简便就怎样算.
|
答案
(1)4.32+5.43+6.68,
=4.32+6.68+5.43,
=11+5.43,
=16.43;
(2)17.17-6.8-3.2,
=17.17-(6.8+3.2),
=17.17-10,
=7.17;
(3)5.29×9+5.29,
=5.29×(9+1),
=5.29×10,
=52.9;
(4)16.8×10.1,
=16.8×10+16.8×0.1,
=168+1.68,
=169.68;
(5)2.74×9.5+5×0.274,
=2.74×9.5+0.5×2.74,
=2.74×(9.5+0.5),
=2.74×10,
=27.4;
(6)0.36+9.6÷3.2,
=0.36+3,
=3.36.