Question

Resolva as seguintes expressões numéricas :
a. 24 x[50-(12+5)x 2]
b. (32-21)-(9+3)x 2:6
c. 10 x{32+2 x[15-3 x(2+3)]:7}
d. {18-3 x[27-(12+14)]}x 5
e. 32+{51-2 x[3 x(32-27)-(2+3)x 2]}

Answer 1

a) 24x[ 50- (12+5) x2]

24 x [50- 17 × 2]
24 x [50-34]
24 x 16
= 384



b) (32-21) - (9+3)×2:6
( 11- 12) x 2: 6
-1 x 3
= -3. (-1)
= 3



c) 10x {32+2 x[15-3x (2+3)] :7}
10x {32+2 x[15-3x 5] :7
10x {32+2 x[ 15- 15 ] :7
10x {34x 0] :7
10x 34 :7
340:7
= 48,5