问题
解答题
计算下面各题.
19.46-(5.44-3.476)
5.45+0.98-2.73
56.23+31.07-54.1
100-(28.4-32.05)
答案
(1)19.46-(5.44-3.476),
=19.46-1.964,
=17.496;
(2)5.45+0.98-2.73,
=6.43-2.73,
=3.7;
(3)56.23+31.07-54.1,
=87.3-54.1,
=33.2;
(4)100-(28.4-32.05),
=100-28.4+32.05,
=71.6+32.05,
=103.65.