Question

7. Calculează respectând ordinea efectuării operațiilor.
(69 + 3): 3 +8.4.0 =
135 + 75:25 - (90 - 30): 30 =
550 : 10 : 11 x (48:3-24 : 12) =
2 x (307-84: (9-5)-3=​

Answer 1

a) (69+3):3+8=

72:3+8=

24+8=32

b) 135+75:25-(90-30):30=

135+75:25-30:30=

135+3-1=

138-1=137

c) 550:10:11*(48:3-24:12)=

550:10:11*(16-2)=

550:10:11*14=

55:11*14=

5*14=70

d) 2*307-84:(9-5)-3=

2*307-84:4-3=

614-22-3=

592-3=589