Question

Pune paranteze ca rezolvările sa fie corecte: a. 18:9+7×5=45
b. 8:4:2+6×2=2
c. 5×8:4+6-2=38
d. 5×8:4+6-2=30

Answer 1

a). (18 : 9 +7 )×5=45
= (2 + 7) x 5 =
= 9 x 5 = 
= 45

b). 8 : (4 : 2 + 6 )× 2=2
    = 8 : 8 x 2 = 
    = 1 x 2 =
    = 2

c). 5 ×( 8 : 4 + 6) - 2 = 38
    = 5 x 8 - 2 =
    = 40 - 2 =
    = 38

d). 5 × (8 : 4+6-2)=30
    = 5 x 6 =
    = 30