0.25×40.4+0.125×10.8的简便运算

2024-11-04 06:31:41
推荐回答(2个)
回答1:

=0.25x(40+0.4)+0.125x(10+0.8)
=0.25x40+0.25x0.4+0.125x10+0.125x0.8
=10+0.1+1.25+0.1
=10.1+1.35
=11.45

回答2: