723-181-19 46×101-146 62×10-62×2怎么简便运算?

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/27 20:20:42
723-181-19 46×101-146 62×10-62×2怎么简便运算?
x)372505T01;<41S03uAѳ';;kxonoTOV;* ڂ@mCKMcjd f [110406 @B&fB@ B&fHB0LL,dČ@Vi¹P=f6yvsbAD@>;(~OX=(^"ރ@uF&](KDOOGxټƩO4Ϧl{u; /WB

723-181-19 46×101-146 62×10-62×2怎么简便运算?
723-181-19 46×101-146 62×10-62×2怎么简便运算?

723-181-19 46×101-146 62×10-62×2怎么简便运算?
723-181-19
=723-(181+19)
=723-200
=523
46×101-146
=46x(100+1)-146
=46x100+46-146
=4600-(146-46)
=4600-100
=4500
62×10-62×2
=62x(10-2)
=62x8
=496

723-181-19
=723-(181+19)
=723-200
=523
46×101-146
=46×101-46-100
=46×(101-1)-100
=46×100-100
=4600-100
=4500
62×10-62×2
=620-124
=620-120-4
=500-4...

全部展开

723-181-19
=723-(181+19)
=723-200
=523
46×101-146
=46×101-46-100
=46×(101-1)-100
=46×100-100
=4600-100
=4500
62×10-62×2
=620-124
=620-120-4
=500-4
=496

收起