11/10/2019
Lesson 10
Midterm exam paper review
Percentages
- What is percentage?
- Special fraction #/100=#%
- percent ( for short)
- few interesting percent: 0%, 100%
2. Percent <====> Fraction form
25%= 25/100. 3%= 3/100
4/5=80/100=80%. 1/8=0.125=12.5%
3. Percent <=====> Decimal Form
20%=0.2. 77%=0.77. 4%=0.04
- Move decimal point to two places to the left
0.075=7.5%. 0.225=22.5%. 0.8=80%
- Move decimal point to two places to the right
Homework:
- Correct Midterm exam paper
- Workbook 6A P43-45 1, 2, 3. P46. 2
- Practice 4A paper