Question

1. Calculează respectând ordinea operatoru
a) 12 + 5 X 3 =
9 x ( 13 - 7) =

b) 9+ 18: 2 : 3 =
(32 -5×4):6=

c) 8 x 3 +9 × 4 =
5 × ( 5 x 7 - 30 ) =​

Answer 1

a) 12 + 5 × 3 = 12 + 15 = 27

9 × ( 13 - 7 ) = 9 × 6 = 54

b) 9 + 18 : 2 : 3 = 9 + 9 : 3 = 9 + 3 = 12

( 32 - 5 × 4 ) : 6 = ( 32 - 20 ) : 6 = 12 : 6 = 2

c) 8 × 3 + 9 × 4 = 24 + 36 = 60

5 × ( 5 × 7 - 30 ) = 5 × ( 35 - 30 ) = 5 × 5 = 25