Question

c) (15-10:2):5+(15+7x3) : 14+4)

d) (5x3-6x2)x(2x4+3)-(9-7)x(8:2-2+9)

e) (5+14x2-54:9) : 3+3x(27:9+2)-42:22

Answer 1

c) (15-10:2):5+(15+7x3) : 14+4)=(15-5) :5+(15+21) : (14+4)=
=10:5+36:14+4=5+5+2,(571428)+4=14+2,(571428)=16,(571428)

d) (5x3-6x2)x(2x4+3)-(9-7)x(8:2-2+9)=(15-12)*(8+3)-3*(4-2+9)=
=3*11- 3*11=0

e) (5+14x2-54:9) : 3+3x(27:9+2)-42:22=(5+28-6) : 3+3*(3+2)-1,(90)=
=27:3+3*5-1(90)=9+15-1(90)=14-1,(90)=12,(09)