Question

79×33+53×76+76×16的简便运算怎么写？

Answer 1

79×33+53×76+76×16
=(76+3)x33+76x53+76x16
=76x33+76x53+76x16+3x33
=76x(33+53+16) + 3x33
=76x(86+16) +99
=76x(102)+(100-1)
=76x(100+2)+100-1
=76x100+76x2+100-1
=7600+152+100-1
=7852-1
=7851

Answer 2

=79ⅹ33+76╳(53+16)
=79X33+76X69
=76ⅹ33+76ⅹ69+33ⅹ3
=76ⅹ(33+69))+33乂3
=76ⅹ102+99
=76ⅹ100+76ⅹ2+99
=7600+152+99
=7600-+251
=7851
运用乘法分配律