Family practice
A percent selects a part of a whole.
Optional until a teacher marks it
Noor looks at 80 stickers at the school store. The task is to find 25% of that whole.
A percent is a ratio to 100. Finding a percent of a number scales that ratio to a new whole. Subtracting the percent from the whole treats a rate as if it were already an amount.
Problem 1 of 8. What we learned, an example, a few together, then independent practice.
What is 25% of 80 stickers at the school store?
Support frame: 1% of 80 = 0.8. Then × 25.