Category Archives: Pre-Algebra

Pre-Algebra: Chapter 9-8 Percent and Estimation To estimate percent, round the percent to the nearest 100, 10, 5 or some multiple of 5 or 10 (usually). Just give it your best shot, in that estimates are just approximations. Remember, to … Continue reading →

Pre-Algebra: Chapter 9-7 Fractions, Decimals and Percents Using D2P and the whickity-whack divide thingy, you can solve any conversion from fractions to decimals to percentages or any combination thereof. Remember that X% stand for X ÷ 100 and you’ll be … Continue reading →

Pre-Alegbra: Chapter 9-5 Using the Percent Proportion If P is the percentage and B is the base and the rate is called R, then P / B = R. If R represents the number per hundred, this equation becomes P … Continue reading →

Pre-Algebra: Chapter 9-5 Using the Percent Proportion We know how to convert fractions to percentages. Remember D2P, it stands for decimal to percentage. To convert from decimals to percentage, we move the decimal from left to right 2 decimal places. … Continue reading →

Pre-Algebra: Chapter 9-4 Using Proportions You can use a proportion to solve problems that relate to ratio. You can use the criss-cross method to solve these type of problems, a/b = c/d or criss-crossing, we can say that a*d = … Continue reading →

Pre-Algebra: Chapter 9-3 Simple Probability Probability is the chance some event will happen. It is the ratio of the number of ways an event can occur to the number of possible outcomes. In an equation then, Probability = number of … Continue reading →

Days 112 and 113 (February 27 and 28) are SNOW DAYS! Pre-Algebra: Chapter 9-2 Problem Solving Strategy – Make a Table You can use the following strategies on the reasoning strategy problems in this lesson! 1. Draw a diagram 2. … Continue reading →

Pre-Algebra: Chapter 9-1 Ratio and Rate Ratio is the term used to describe 2 numbers expressed as a fraction. We can say 4/5, 4:5, 4 of 5 or 4 out of 5. They all mean the same thing. Ratio is … Continue reading →

SNOW DAY! Pre-Algebra: Chapter 8 TEST will finish on Monday Algebra: Chapter 6 Test Review Be ready for the test on Monday, MAKE SURE you do the Chapter 6 Test, Version 1 completely correct! (Hint!)

Pre-Algebra: Chapter 8 TEST today! No homework! Algebra: Chapter 6 Review Get ready for the Chapter 6 TEST tomorrow. MAKE SURE THAT YOU KNOW HOW TO DO ALL THE PROBLEMS ON THE CHAPTER 6 TEST REVIEW (actually Form A of … Continue reading →