Question

2. Efectuează respectând ordinea operaţiilor:
a) 30 x 15 + 444
375 - 17 x 20
b) 40 x (189 - 95)
(128 +674) x 7
c) 15 x 60 - 12 x 60
6x (2 + 18 - 10)
d) 12 x 9 +4x 150
392 x 10- (4x5 + 16)​

Answer 1

Salut!

a) 30 × 15 + 444 =

450 + 444 =

894

375 - 17 × 20 =

375 - 340 =

35

b) 40 × ( 189 - 95 ) =

40 × 94 =

3760

( 128 + 674 ) × 7 =

802 × 7 =

5614

c) 15 × 60 - 12 × 60 =

900 - 720 =

180

6 × ( 2 + 18 - 10 ) =

6 × ( 20 - 10 ) =

6 × 10 =

60

d) 12 × 9 + 4 × 150 =

108 + 600 =

708

392 × 10 - ( 4 × 5 + 16 ) =

392 × 10 - ( 20 + 16 ) =

392 × 10 - 36 =

3920 - 36 =

3884