Grade 8 - Number
Standard 8.N.3 - Practice estimating the percents of numbers.
Included Skills: Ratios
Demonstrate an understanding of percents greater than or equal to 0%. • Achievement Indicators - Provide a context where a percent may be more than 100% or between 0% and 1%. - Represent a given fractional percent using grid paper. - Represent a given percent greater than 100 using grid paper. - Determine the percent represented by a given shaded region on a grid, and record it in decimal, fractional and percent form. - Express a given percent in decimal or fractional form. - Express a given decimal in percent or fractional form. - Express a given fraction in decimal or percent form. - Solve a given problem involving percents. - Solve a given problem involving combined percents, e.g., addition of percents, such as GST + PST. - Solve a given problem that involves finding the percent of a percent, e.g., A population increased by 10% one year and then increased by 15% the next year. Explain why there was not a 25% increase in population over the two years.