Percent Increase and Decrease Quiz
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Calculating Percent Mentally - Notes & Homework
This introduces students to computing percents mentally. It encourages students to start with finding 10% and then mentally compute percent multiples of 5. Download is a word document to customize if you wish. Includes both notes and a homework assignment!
5th - 9th
Basic Operations, Decimals, Mental Math
Finding Percents Mentally (Guided Notes)
This lesson is meant to be used as guided notes for a whole class. Students start off by learning how to find 10% of a number, and they use this to find 20%, 30%, 40%, and other multiples of 10%. After noticing that 50% is half of a number and 25% is a fourth, they then learn how to find 5% of a number. This allows them to find 35%, 45%, etc. Finally, students do some real world math by estimating percents of numbers and approximating a couple tips at a restaurant. The last 2 pages are a copy o
6th - 9th
Applied Math, Math, Mental Math
CCSS
6.RP.A.3c
, 7.RP.A.3
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