Question

10×{2+[(9²-31/√100)-3²-2/5]+3}×1/5

Answer 1

10x{2+[(9² - 31/√100) - 3² -2/5]+3}x1/5
10x{2+[81 - 3,1 - 9 - 0,4]+3}x1/5
10x{2+ 68,5 + 3}x1/5
10 x 73,5 x 0,2
147