Question

C) 3.2:6. [20 + (54:9:2 - 1)] – 20 = d) [(5 4+3 •4):(9.8-8.8)] : 4 =​

Answer 1

Explicație pas cu pas:

C) 3×2÷6×[20+(54÷9÷2-1)]-20=

6÷6×[20+(6÷2-1)]-20=

6÷6×(20+2)-20=

6÷6×22-20=

1×22-20=

22-20=2

D) [(5×4+3×4)÷(9×8-8×8)]÷4=

[(20+12)÷(72-64)]÷4=

(32÷8)÷4=

4÷4=1