Answer: 0.4 ÷0.08 = 5
See the attachment for graphic model.
Also see long division next to the model.
Explanation:
You have a quantity of four tenths. You are breaking it down into groups of eight hundredths. How many groups can you make?
Remember that 4 tenths is the same as 40 hundredths, so the problem can be restated as 40 (hundredths) divided by 8 (hundredths)
40 ÷ 8 = 5
For the model, make 10 columns. Shade or color 4 of them to show 4/10.
Measure a unit that is 8/100 wide, and mark that off.
Count how many sections are marked off. Circle or alternately shade them.
I used a centimeter ruler, so each centimeter represents one tenth, each millimeter represents one hundredth.
As you mark off the increments of 8 (multiples: 8,16,24,32,40) that fills and divides the space between 0 and 4 tenths with 5 widths of 8/100.
I hope this helps. It's complicated!