11/10/2019

Lesson 10

Midterm exam paper review

Percentages

  1. 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:

  1. Correct Midterm exam paper
  2. Workbook 6A P43-45 1, 2, 3. P46. 2
  3. Practice 4A paper
This entry was posted in Uncategorized. Bookmark the permalink.