Question

вычислите устно;

(4*3*5):(3*4)

(8*6*7*9):(2*6*7*3)

(3*5*2*11):(5*11)

(8*9*6*5):(9*3*5)

Answer 1

(4×3×5):(3×4)=5
(8×6×7×9):(2×6×7×3)=12
(3×5×2×11):(5×11)=6
(8×9×6×5):(9×3×5)=16

Answer 2

можна решения