tiếp nầy ..
7) 12 . 35 + 35 . 182 – 35 .94
8) 48 .19 + 48 . 115 + 134 . 52
9) 27 . 121 – 87 . 27 + 72 . 34
còn phần cuối nhé !! ..
tiếp nầy ..
7) 12 . 35 + 35 . 182 – 35 .94
8) 48 .19 + 48 . 115 + 134 . 52
9) 27 . 121 – 87 . 27 + 72 . 34
còn phần cuối nhé !! ..
@Bơ
`12 . 35 + 35 . 182 – 35 .94`
`=35 .(182+12-94)`
`=35.100`
`=3500`
`48 .19 + 48 . 115 + 134 . 52`
`= 48. ( 19+115)+ 134 . 52`
`=48.134+6968`
`=6432+6968`
`=13400`
`27 . 121 – 87 . 27 + 72 . 34`
`=27.(121-87)+ 72 . 34`
`=27.34+2448`
`=918+2448`
`=3366`
a) $12.35+35.182-35.94$
$=35(12+182-94)$
$=35.100=3500$
b) $48.19+48.115+134.52$
$=48(19+115)+134.52$
$=48.134+134.52$
$=134(48+52)$
$=134.100=13400$
c) $27.121-87.27+72.34$
$=27(121-87)+72.34$
$=27.34+72.34$
$=34.(27+72)$
$=34.99$
$=34.100-34=3366$