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.

单项选择题
单项选择题 A1型题