Question

9•(4•25)
15•(4•9)
11•(10•3)
10•(29•2)

Answer 1

9*(4*25) = 9*100 = 900
15*(4*9) = (15*4)*9 = 60*9 = 540
11*(10*3) = (11*10)*3 = 110*3 = 330
10*(29*2) = 10*58 = 580