Question

1/2 x 9/10 + 1/2 x 8/10 + 1/2 x 3/10

Answer 1

\(\frac{1}{2}.\frac{9}{10}+\frac{1}{2}.\frac{8}{10}+\frac{1}{2}.\frac{3}{10}=\frac{1}{2}.\left(\frac{9}{10}+\frac{8}{10}+\frac{3}{10}\right)=\frac{1}{2}.2=1\)

Dấu chấm là dấu nhân nhé

Answer 2

= \(\frac{1}{2}\times\left(\frac{9}{10}+\frac{8}{10}+\frac{3}{10}\right)=\frac{1}{2}\times\frac{20}{10}=\frac{1}{2}\times2=1\)