Grade 07 Mathematics - EC: M07.B-E.2.1.1

Continuum of Activities

The list below represents a continuum of activities: resources categorized by Standard/Eligible Content that teachers may use to move students toward proficiency. Using LEA curriculum and available materials and resources, teachers can customize the activity statements/questions for classroom use.

This continuum of activities offers:

Instructional activities designed to be integrated into planned lessons
Questions/activities that grow in complexity
Opportunities for differentiation for each student’s level of performance

Grade Levels

7th Grade

Course, Subject

Mathematics

Related Academic Standards / Eligible Content

M07.B-E.2.1.1 M07.B-E.2.1.1

Apply properties of operations to calculate with numbers in any form; convert between forms as appropriate. Example: If a woman making $25 an hour gets a 10% raise, she will make an additional 1/10 of her salary an hour, or $2.50, for a new salary of $27.50 an hour (or 1.1 × $25 = $27.50).

Activities

Let N represent the price of a watch that you are buying. The sales tax is 9%, write an expression to show the total amount paid.

Your current job pays you $15.25 per hour, but you are getting a raise of 20 %. What is the amount per hour of your raise?

After the second round in the geography bee the number of students was represented by 0.75N. Write a sentence to describe what has happed to the number of students during the two rounds of the geography bee.

Terrance is going to buy a new pair of sneakers. The store is having a sale that all items get a 15% discount. In addition to this Terrance has a coupon that will allow him to take an extra $10 off a purchase that is over $100. The store is going to allow him to get the discount and then use his coupon. Write an expression to show how much he would pay if the sneakers cost $C.
Part B) Solve the expression of the sneakers were $125 originally. Show your work.

Fill in the chart, round to the nearest hundredth.

Answer Key/Rubric

1.09N

$3.05

Student work might include but is not limited to ,

After two rounds of the geography bee only 75% of the contestants were left.
After two rounds of the geography bee 25 % of the contestants were eliminated.

0.85C – 10 Student work might include but is not limited to

Find the percent that you are paying. 100% - 15% = 85%
Change the percent into an equivalent decimal 85% = 0.85
Multiply the original amount by the decimal value of what you will pay to get the sale amount
Subtract the $10 coupon
Part B) 0.85($125) – 10
$106.25 -$10.00
$96.25 cost after sale and coupon