Question

Which of these ways of calculating 2.5% of a number are correct? Explain your thinking.

A. Calculate 5%, then divide by 2.

B. Calculate 25%, then divide by 10.

C. Divide by 4, then divide by 10.

D. Calculate 1%, double it, and then add another half of 1%.

I am a Mathematics teacher and I could not  provide the right concepts and procedure to solve this to my students...

Answer 1

?????????? korrekt ????????

the werd is rite or true

######### num av the abuv ##########

2.5%=0.025

so 2.5% av x=0.25*x

if yu want, yu kan divide bi 40, kauz (1/40)=0.025