Question

câu a

Answer 1

`#Phuongg`

`a)25xx125xx4xx8`

`=(25xx4)xx(125xx8)`

`=100xx1000`

`=100000`

`b)2022xx90+9xx2022+2022`

`=2022xx(90+9+1)`

`=2022xx100`

`=202200`

Answer 2

a,=(25.4).(125.8)

=100.1000

=100000

b,=2022.(90+1+9)

=2022.100

=202200

Answer 3

a.1000x100=12500000

b.2022x(90+9+1)=2022x100=202200

Answer 4

a) = ( 25 x 8) x (125 x 4)

= 200 x 500

= 100000

b) = 2022 x ( 90 + 9 + 1 )

= 2022 x 100

= 202200