问题
解答题
用你喜欢的方法计算:
70.8-1.25-1.75
1.25×8.8
0.36×101-0.36.
答案
(1)70.8-1.25-1.75,
=70.8-(1.25+1.75),
=70.8-3,
=67.8;
(2)1.25×8.8,
=1.25×(8+0.8),
=1.25×8+1.25×0.8,
=10+1,
=11;
(3)0.36×101-0.36,
=0.36×(101-1),
=0.36×100,
=36.