Toán tinh nhanh 34,4×6,34+3,66×34,4/17,2×9,55+12,45×17,2-17,2 27/09/2021 By Reese tinh nhanh 34,4×6,34+3,66×34,4/17,2×9,55+12,45×17,2-17,2
`a,34,4*6,34+3,66*34,4=34,4(6,34+3,66)=34,4*10=344` `b,17,2*9,55+12,45*17,2-17,2=17,2(9,55+12,45-1)=17,2*21=36,12` Trả lời
`34,4 × 6,34 + 3,66 × 34,4` `= 34,4 × ( 6,34 + 3,66 )` `= 34,4 × 10` `= 344` `17,2 × 9,55 + 12,45 × 17,2 – 17,2` `= 17,2 × ( 9,55 + 12,45 – 1 )` `= 17,2 × 21` `= 361,2` HỌC TỐT NHA ! #NOCOPY Trả lời
`a,34,4*6,34+3,66*34,4=34,4(6,34+3,66)=34,4*10=344`
`b,17,2*9,55+12,45*17,2-17,2=17,2(9,55+12,45-1)=17,2*21=36,12`
`34,4 × 6,34 + 3,66 × 34,4`
`= 34,4 × ( 6,34 + 3,66 )`
`= 34,4 × 10`
`= 344`
`17,2 × 9,55 + 12,45 × 17,2 – 17,2`
`= 17,2 × ( 9,55 + 12,45 – 1 )`
`= 17,2 × 21`
`= 361,2`
HỌC TỐT NHA !
#NOCOPY