Relationships and Change - Week 46 Lesson 2- Percents of Amounts
Objective (Teaching Point): To multiply percentages by whole numbers. The lesson focuses on multiplying percentages to whole numbers. There are two ways to find the percent of amounts... Lesson:
1. Students can convert percentage to a decimal and then multiplying the decimal to the whole number 2. Students can divide the number by 10 to find 10% ; by 100 to find 1% ; or by 2 to find 50% 20% can be found either by adding 10% + 10% or by multiplying 10% x 2.
5% can be found by 10% divided by 2 or 1% times 5.Examples: 20% of 80
11% of 400
65% of 200
79% of 300
31% of 50
83% of 150Work In Class: KS3 Book Page 236 Q. 5,6 Page 237 Q. 7,8,9,10,11