a) 2x213x6+4x317x3+470×12 b) 12x70x4+8x36x6+16x91x3 03/09/2021 Bởi Charlie a) 2x213x6+4x317x3+470×12 b) 12x70x4+8x36x6+16x91x3
Đáp án: Giải thích các bước giải: `a)` `2` x `213` x `6` `+` `4` x `317` x `3` `+` `470` x `12` `=` `(2` x `6)` x `213` `+` `(6` x `2)` x `317` `+` `12` x `470` `=` `12` x `213` `+` `12` x `317` `+` `12` x `470` `=` `12` x `(213+317+470)` `=` `12` x `1000` `=` `12000` `b)` `12` x `70` x `4` `+` `8` x `36` x `6` `+` `16` x `91` x `3` `=` `(12` x `4)` x `70` `+` `(8` x `6)` x `36` `+` `(16` x `3)` x `91` `=` `48` x `70` `+` `48` x `36` `+` `48` x `91` `=` `48` x `(70+36+91)` `=` `48` x `197` `=` `9456` CHÚC BẠN HỌC TỐT Bình luận
$a) 2.213.6+4.317.3+470.12\\=2556+3804+5640\\=12000\\b) 12.70.4+8.36.6+16.91.3\\=3360+1728+4368\\=9456$ Bình luận
Đáp án:
Giải thích các bước giải:
`a)` `2` x `213` x `6` `+` `4` x `317` x `3` `+` `470` x `12`
`=` `(2` x `6)` x `213` `+` `(6` x `2)` x `317` `+` `12` x `470`
`=` `12` x `213` `+` `12` x `317` `+` `12` x `470`
`=` `12` x `(213+317+470)`
`=` `12` x `1000`
`=` `12000`
`b)` `12` x `70` x `4` `+` `8` x `36` x `6` `+` `16` x `91` x `3`
`=` `(12` x `4)` x `70` `+` `(8` x `6)` x `36` `+` `(16` x `3)` x `91`
`=` `48` x `70` `+` `48` x `36` `+` `48` x `91`
`=` `48` x `(70+36+91)`
`=` `48` x `197`
`=` `9456`
CHÚC BẠN HỌC TỐT
$a) 2.213.6+4.317.3+470.12\\=2556+3804+5640\\=12000\\b) 12.70.4+8.36.6+16.91.3\\=3360+1728+4368\\=9456$