Question

Calculeaza,respectand ordinea efectuarii operatiilor: a] 48:8:2 ori 5 = b] 12+6:[3+9:3] a]45:5:3 ori 6 = b] 21-21:7 ori [4-5:3]=

Answer 1

a) 48:8:2x5
6:2x5
3x5=15

b) 12+6 : 6
12+1=13

c) 9:3x6
3x6=18

d)21-3 x ( 4-1.(6) ) 
21 - 3 x .2(3)
21-7.00000002=13.999999998

Answer 2

48/8/2*5=15
48/8=6
6/2=3
3*5=15

b) 12+6/(3+9:3)=13
9:3=3
3+3=6
6/6=1
12+1=13

c) 
45:5:3*6=18
45:5=9
9:3=3
3*6=18

d)
21-21:7*(4-5:3)=14
21:7=3
5:3=1.(6)
4-1.(6)=2.(3)
3*2.(3)=6.(9)
21-6.(9)=14
Punctul d, mi se pare ca l-ai scris gresit. daca nu, asta e rezolvarea.