Question

(7,5 x 18,35 + 36,4 x 201,6) x (47 x 11 - 47 : 0,1 - 47)

tính nhanh

Answer 1

=(7,5*18,35+36,4*201,6)*(47*11-47*10-47)

=0

Answer 2

\(\left(7,5\times18,35+36,4\times201,6\right)\times\left(47\times11-47:0,1-47\right)\\ =\left(7,5\times18,35+36,4\times201,6\right)\times\left(47\times11-47\times10-47.1\right)\\ =\left(7,5\times18,35+36,4\times201,6\right)\times\left[47\times\left(11-10-1\right)\right]\\ =\left(7,5\times18,35+36,4\times201,6\right)\times\left(47\times0\right)\\ =\left(7,5\times18,35+36,4\times201,6\right)\times0\\ =0\)