Question

Tính bằng cách thuận tiện nhất

20,18 * 7,5 + 20,18 + 20,18 + 20,18 / 2

Answer 1

\(20,18\times7,5+20,18+20,18+20,18:2=20,18\times7,5+2\times20,18+20,18.\dfrac{1}{2}=20,18\left(7,5+2+\dfrac{1}{2}\right)=20,18\times10=201,8\)