下面各题怎样简便就怎样算.(1)64×101;(2)18.3-6.25-3.75;(3)4×1.75×25;(4)50-(2.38+1.75

2024-12-04 10:20:33
推荐回答(1个)
回答1:

(1)64×101
=64×(100+1)
=64×100+1×64
=6400+64
=6464;

(2)18.3-6.25-3.75
=18.3-(6.25+3.75)
=18.3-10
=8.3;

(3)4×1.75×25
=4×25×1.75
=100×1.75
=175;

(4)50-(2.38+1.75)
=50-4.13
=45.87;

(5)73×17+83×73
=(17+83)×73
=100×73
=7300;

(6)120×4-420÷14
=480-30
=450.