Question

Pentru a putea ajunge la cabana, trebuie sa rezolvi exercitiile de pe biletelele gasite mai jos:

81x27-5x[3+3x(121:11-81:27)]:57=

(15:3+27:9):[16-(3x20-25x2):5-6]+3=

(X x 5)+3750x4=52500

{[2500+(2500x2)]-6250}:5=


Dau funda!!!!

Answer 1

81x27-5x[3+3x(121:11-81:27)]:57
2187-5x[3+3x(11-3)]:57
2187-5x(3+3x9):57
2187-5x(3+27):57
2187-5x30:57
2187-150:57
2187-2.63=2184.37

(15:3+27:9):[16-(3x20-25x2):5-6]+3
(5+3):[16-(60-50):5-6]+3
8:(16-10:5-6)
8:(16-2-6)
8:(14-6)
8:8=1

(Xx5)+3750x4=52500
(Xx5)+15000=52500
(Xx5)=52500-15000
(Xx5)=37500
X=37500:5
X=7500

{[2500+(2500x2)]-6250}:5
[(2500+5000)-6250]:5
(7500-6250):5
1250:5=250

Answer 2

81x27-5x[3+3x(121:11-81:27)]:57
2187-5x[3+3x(11-3)]:57
2187-5x(3+3x9):57
2187-5x(3+27):57
2187-5x30:57
2187-150:57
2187-2.63=2184.37

(15:3+27:9):[16-(3x20-25x2):5-6]+3
(5+3):[16-(60-50):5-6]+3
8:(16-10:5-6)
8:(16-2-6)
8:(14-6)
8:8=1

(Xx5)+3750x4=52500
(Xx5)+15000=52500
(Xx5)=52500-15000
(Xx5)=37500
X=37500:5
X=7500

{[2500+(2500x2)]-6250}:5
[(2500+5000)-6250]:5
(7500-6250):5
1250:5=250