= 5,25 x (18 - 7 - 1)
= 5,25 x 10
= 52,5
9,67 x 80 x 1,25
= 9,67 x 100
= 967
a) 5,25x18-5,25x7-5,25
= 5,25x18-5,25x7-5,25x1
= 5,25x(18-7-1)
= 5,25x10
= 52,5
b) 9,67x80x1,25
= 9,67x100
= 967
a.= 5,18 x (18 - 7 - 1)
= 5,18 x 10 = 51,8
b.= 9,67 x (80 x 1,25)
= 9,67 x 100= 967
$#Shả$
`a)=5,25xx(18-7-1)`
`=5,25xx10=52,5`
`b)=9,67xx100=967`