67.7 x 90 + 67.7 : 0.1
= 67.7 x 90 + 67.7 x 10
= 67.7 x ( 90 + 10 )
= 67.7 x 100
= 6770.
67.7 x 90 + 67.7 : 0.1
= 67.7 x 90 + 67.7 x 10
= 67.7 x ( 90 + 10 )
= 67.7 x 100
= 6770
67.7x90+67.7;0.1 =
=[67.7x90]+[67.7;0.1]
=6093 + 677
= 6770
1+1=3 okkkkkkkkAY
6770 rồi!ok ur help was accepted!