Find 25% of 60.
15
25/100 × 60 = 15.
Day 056Percent Parts in Context
Standards 6.RP.A.3c
LEARNING TARGET
I can find the part when I know the percent and whole.
01 · LEARN
Build the idea
Use part = (percent/100) × whole. You may also find 10%, 5%, or 1% and combine equal pieces. Label the part in the same units as the whole.
Find 20% of 80. Then explain a mental-math or fraction strategy that checks your answer.
16
20/100 × 80 = 16.
02 · PRACTICE
Your turn
Work in order. Start with the foundations, then build toward explanation and application.
Find 20% of 120.
Find 20% of 160.
Find 20% of 100.
Find 60% of 140.
Find 40% of 40.
Find 5% of 100.
Find 20% of 240. Then explain a mental-math or fraction strategy that checks your answer.
Find 75% of 200. Then explain a mental-math or fraction strategy that checks your answer.
Find 20% of 120. Then explain a mental-math or fraction strategy that checks your answer.
Find 25% of 220. Then explain a mental-math or fraction strategy that checks your answer.
03 · CHECK
Answers and reasoning
Reveal the teacher answer key
- 24
20/100 × 120 = 24.
- 32
20/100 × 160 = 32.
- 20
20/100 × 100 = 20.
- 84
60/100 × 140 = 84.
- 16
40/100 × 40 = 16.
- 5
5/100 × 100 = 5.
- 48
20/100 × 240 = 48.
- 150
75/100 × 200 = 150.
- 24
20/100 × 120 = 24.
- 55
25/100 × 220 = 55.