what part of a yard is 1 1/2 ft? what part of a mile is 1 rod? If 1 rod is 5 1/2 yards. 320 rods = 1 mile.

A yard is 3 feet. 1 1/2 feet is half a yard.

1 rod is 1/320 of a mile or
1 rods = 0.003125 mile

Thank you what about 40 rods? 80 rods? and 160 rods? I think 160 rods of a mile is 1/2 right?

Right.

40 rods = 40/320 = 1/8 mile

so 80 would be 1/4 and then 1/2 right?

How would I show a kid in third grade on how to remember to do this. Is there an easy formula?

I'd make or find a table that would show these equivalents.

Better yet, I'd help him make such a table so he could refer to it.

Was my answers right? Thank you for helping me!!!!

Right.

which unit makes this sentence true? Use gram ro kilograms. A CD had a mass 10

Mrs Gainey needs to buy string for 5 students to do a science activity. Each student needs 2 feet of blue string and 1 foot of red string. How many yards of string does Mrs. Gainey need to buy?