Find Number of Sheets Left Over

[nycmathguy]

At a certain store, loose-leaf paper comes only in packages of 400 sheets. If a student buys enough paper at this store to fill 3 binders with 150 sheets of paper each, how many sheets will be left over?

A. 17
B. 50
C. 350
D. 450

Each package has 400 sheets.
So, 150 x 3 = 450 sheets.

Let s = number of sheets left over.

s = 450 -400

s = 50

NOTE: WE GO BACK TO COLLEGE ALGEBRA NEXT WEEKEND. I FINALLY MOVED OUT. IT HAS BEEN A LONG YEAR OF MISERY. HOPEFULLY, THE NEXT PLACE WILL BE BETTER.

 

[MathLover1]

Calculate:
3 × 150 = 450 sheets will be used.
Since the paper sells in packages of 400 sheets, 2 packages are needed, and 2 × 400 = 800.

800 − 450 = 350 sheets left over.

 

[nycmathguy]

Calculate:
3 × 150 = 450 sheets will be used.
Since the paper sells in packages of 400 sheets, 2 packages are needed, and 2 × 400 = 800.

800 − 450 = 350 sheets left over.

Ok. I calculated quickly.