> 数学 >
简便计算:
46×26+26×64       
99×56          
25×44           
83×101-83.
人气:324 ℃ 时间:2020-03-02 06:09:38
解答
①46×26+26×64
=26×(46+64)
=26×(100+10)
=2600+260
=2860
②99×56
=(100-1)×56
=5600-56
=5544
③25×44
=25×(40+4)
=1000+100
=1100
④83×101-83
=83×(101-1)
=83×100
=8300
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