Question

Tính nhanh:9+9x3+18:2x6

Answer 1

\(9+9\times3+18:2\times6\\ =9+9\times3+\left(18:2\right)\times6\\ =9+9\times3+9\times6\\ =9\times\left(1+3+6\right)\\ =9\times10\\ =90\)

Answer 2

_{9 + 9 x 3 + 18 : 2 x 6}

_{= 9 + 9 x 3 + 9 x 6}

_{= 9 x ( 3 + 6 + 1)}

_{= 9 x 10}

_{= 90}