Bonjour,

a. 36 x (21 + 55) = 36 x 21 + 36 x 55

b. 81 x (48 - 7) = 81 x 48 - 81 x 7

c. (85 - 7) x 71 = 71 x 85 - 71 x 7

d. (32 + 91) x 44 = 44 x 32 + 44 x 91

a. 83 x 72 + 83 x 13 = 83 x (72 + 13)

b. 36 x 13 - 36 x 5 = 36 x (13 - 5)

c. 98 x 26 + 98 x 9 = 98 x (26 + 9)

d. 16 x 44 - 6 x 44 = 44 x (16 - 6)