Question

1) 46:23+{78-3x[(15+7x5):5]-3x7}



2) 9x{8+7x[6+5x(4+3x(2+1)]} :(1+2+3+4+5+6+7+8+9)



3) 1+2x{3+4:[5-6:(7-8:(9-1)]}




4) 11x{3+5x[200-3x(442-80x5)]+17

Answer 1

1)46:23+{78-3x[(15+35):5]-3x7}=
2+([78-3x50:5)-21=
2+(78-50)-21=
2+28-21=9

2)9x{8+7x[6+5x(4+3x3)]}:45=
9x[8+7x(6+5x(4+9)):45=
9x(8+7x(6+5x13):45=
9+(8+7x(6+75):45=
9+(8+7x81):45=
9+(8+567):45
9+575:45=
9+12.77=21.77

3)1+2x{3+4:[5-6:(7-8:8)]}=
1+2x(3+4:(5-6:(7-1))=
1+2x(3+4:(5-6:6))=
1+2x(3+4:4)=
1+2x(3+1)=
1+2x4=9

4)11x{3+5x[200-3x(442-400)]}+17=
11x{3+5x[200-3x42]+17=
11x{3+5x200-126}+17=
11x(3+1000-126)+17=
11x877+17=
9647+17=9664