简便运算:25×398
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/10 13:50:52
简便运算:25×398
简便运算:25×398
简便运算:25×398
25×398
=25×(400-2)
=25×400-25×2
=10000-50
=9950
25×398
=25x(400-2)
=25x400-25x2
=10000-50
=9950
9950
简便运算:25×398
简便运算:25×398
简便运算:25×398
25×398
=25×(400-2)
=25×400-25×2
=10000-50
=9950
25×398
=25x(400-2)
=25x400-25x2
=10000-50
=9950
9950