Question

Tính nhanh:

\(\dfrac{75}{100}+\dfrac{3}{4}\cdot29+75\%\cdot30+0.75\cdot40\)

Answer 1

`75/100+3/4 *29+75% *30 + 0,75 * 40`

`= 0,75 + 0,75 * 29 + 0,75 * 30 +  0,75 * 40`

`= 0,75 * (1+29+30+40)`

`=0,75*100`

`=75`

Answer 2

\(\dfrac{75}{100}+\dfrac{3}{4}.29+75\%.30+0,75.40=\dfrac{75}{100}+\dfrac{75}{100}.29+\dfrac{75}{100}.30+\dfrac{75}{100}.40=\dfrac{75}{100}.\left(1+29+30+40\right)=\dfrac{75}{100}.100=75\)