contestada

a. 32 X 10 = (3 X 3) X 10 = 9 X 10 = 90
b. 6 X 32 = 36 X 9 = 324 324
c. 8 + 4 = 8 + 64 = 72
d. 285 – 72 = 285 – 49 = 236

a 32 X 10 3 X 3 X 10 9 X 10 90 b 6 X 32 36 X 9 324 324 c 8 4 8 64 72 d 285 72 285 49 236 class=