Question

50-5x(4,70+3,12)+18x0,80
b) 5x4,70+5x3,12+3x6x0,80-50
c) -[5×(4,70+3,12)+3×6×0,80]+ 50
d) 50-[5×(4,70+3,12)+3×6+0,80]
e) 50-[5×(4,70+3,12)+6×0,80]

Answer 1

a) 50-5×(4,70+3,12)+18×0,80
=50-5×7,82+14,4
=50-39,1+14,4
=25,3
b) 5×4,70+5×3,12+3×6×0,80-50
=23,5+15,6+14,4-50
=53,5-50
=3,5