a, 150.19+84.67+71-84+84.12 b, 4.51.7+2.86.7+12.2.7 c, 36-28+64.69+36.82+41.62 05/10/2021 Bởi Cora a, 150.19+84.67+71-84+84.12 b, 4.51.7+2.86.7+12.2.7 c, 36-28+64.69+36.82+41.62
a, 150 . 19 + 84 . 67 + 71 . 84 + 84 . 12 = 150 . 19 + 84 . (67 + 71 + 12) = 150 . 19 + 84 . 150 = 150 . (19 + 84) = 150 . 105 = 1575 b, 4 . 51 . 7 + 2 . 86 . 7 + 12 . 2 . 7 = 7 . ( 4 . 51 + 2 . 86 + 12 . 2 ) = 7 . ( 204 + 172 + 24 ) = 7 . 400 = 2800 c, 36 . 28 + 64 . 69 + 36 . 82 + 41 . 62 = 36 . (28 + 82) + 64 . 69 + 41 . 62 = 36 . 110 + 64 . 69 + 41 . 62 = 3960 + 4416 + 2542 = 10918 Chúc học tốt!!! Bình luận
$a) 150.19 + 84.67 + 71.84 + 12.84$ $= 150.19 + 84.(67 + 71 + 12)$ $= 150.19 + 84.150$ $=150.(19 + 84)$ $=150.105$ $= 1575$ $b) 4.51.7 + 2.86.7 + 12.2.7$ $=7.(4.51 + 2.86 + 12.2)$ $=7.(204 + 172 + 24)$ $=7.400$ $=2800$ $c) 36.28 + 64.69 + 36.82 + 41.64$ $=36.(28 + 82) + 64.(69 + 41)$ $=36.110 + 64.110$ $=110.(36 + 64)$ $=110.100$ $=11000$ Bình luận
a, 150 . 19 + 84 . 67 + 71 . 84 + 84 . 12
= 150 . 19 + 84 . (67 + 71 + 12)
= 150 . 19 + 84 . 150
= 150 . (19 + 84)
= 150 . 105
= 1575
b, 4 . 51 . 7 + 2 . 86 . 7 + 12 . 2 . 7
= 7 . ( 4 . 51 + 2 . 86 + 12 . 2 )
= 7 . ( 204 + 172 + 24 )
= 7 . 400
= 2800
c, 36 . 28 + 64 . 69 + 36 . 82 + 41 . 62
= 36 . (28 + 82) + 64 . 69 + 41 . 62
= 36 . 110 + 64 . 69 + 41 . 62
= 3960 + 4416 + 2542
= 10918
Chúc học tốt!!!
$a) 150.19 + 84.67 + 71.84 + 12.84$
$= 150.19 + 84.(67 + 71 + 12)$
$= 150.19 + 84.150$
$=150.(19 + 84)$
$=150.105$
$= 1575$
$b) 4.51.7 + 2.86.7 + 12.2.7$
$=7.(4.51 + 2.86 + 12.2)$
$=7.(204 + 172 + 24)$
$=7.400$
$=2800$
$c) 36.28 + 64.69 + 36.82 + 41.64$
$=36.(28 + 82) + 64.(69 + 41)$
$=36.110 + 64.110$
$=110.(36 + 64)$
$=110.100$
$=11000$