2018 x 5 + 2018 + 2018 x 4
= 2018 x ( 5 + 1 + 4 )
= 2018 x 10
= 20180
2018 x 5 + 2018 + 2018 x 4
= 2018 x ( 5+1+4)
= 2018 x 10 = 20180
\(2018\times5+2018+2018\times4\)
\(=2018\times\left(5+1+4\right)\)
\(=2018\times10=20180\)
2018x5+2018+2018x4=2018x5+2018x1+2018x4=2018x(4+1+5)=2018x10=20180
Tính nhanh :
2018 x 5 + 2018 + 2018 x 4
= 2018 x ( 5 + 1 + 4)
= 2018 x 10 = 20180