Percent of a Number Mentally
Presentation
•
Mathematics
•
7th Grade
•
Hard
Joseph Anderson
FREE Resource
5 Slides • 17 Questions
1
Percent Benchmarks
You don't always need a calculator to find percents of numbers!!!
Let's learn how to mentally find 50%, 10%, 20% and 5% of numbers.
2
To find 50% of a number without using a calculator...
just cut your number in half
3
Multiple Choice
4
Multiple Choice
5
Multiple Choice
6
Multiple Choice
7
To find 10% of a number without using a calculator...
just move the decimal 1 time left
8
Fill in the Blanks
9
Multiple Choice
10
Multiple Choice
11
Multiple Choice
12
Multiple Choice
13
To find 20% of a number without using a calculator...
just move the decimal 1 time left then DOUBLE YOUR ANSWER
(because 20% is double of 10%)
14
Multiple Choice
15
Multiple Choice
16
Multiple Choice
17
Multiple Choice
18
To find 5% of a number without using a calculator...
just move the decimal 1 time left then do HALF OF YOUR ANSWER
(because 5% is half of 10%)
19
Multiple Select
20
Multiple Choice
21
Multiple Choice
22
Multiple Choice
Percent Benchmarks
You don't always need a calculator to find percents of numbers!!!
Let's learn how to mentally find 50%, 10%, 20% and 5% of numbers.
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