Equations and Expressions

Which words should go in the blue / right side of this venn diagram?

• has an equal sign, can be solved

• does not have an equal sign, can not be solved

• has numbers and/or variables

Which words should go in the green / middle of this venn diagram?

• has an equal sign, can be solved

• does not have an equal sign, can not be solved

• has numbers and/or variables

Is this true for an expression or an equation?

• expression

• equation

• both expressions and equations

• neither

Mrs. Waldvogel has a rectangular garden in her backyard. Her garden is 4.55 meters wide and 17.4 meters long. Round the length and width of Mrs. Waldvogel's garden to the nearest whole number to estimate the perimeter of her garden. Choose the equation that best models this situation.

• 20 + 4 = 24 meters

• 17 + 5 = 22 meters

• 20 + 20 + 4 + 4 + = 48 meters

• 17 + 17 + 5 + 5 = 44 meters

Choose all the true equations.

• 4.95 + 7.15 = 12.1

• 10.82 - 7.15 = 3.77

• 8.47 + 7.15 = 15.52

• 9.14 - 7.15 = 1.99

Mrs. Waldvogel has a rectangular garden in her backyard. Her garden is 4.55 meters wide and 17.4 meters long. Round the length and width of Mrs. Waldvogel's garden to the nearest tenth to estimate the perimeter of her garden. Choose the equation that best models this situation.

• 20 + 5 = 25 meters

• 17.4 + 17.4 + 4.6 + 4.6 = 44 meters

• 20 + 20 + 5 + 5 + = 50 meters

• 17.4 + 4.6 = 22 meters

Choose all expressions that are equal to 8.73 + 6.62

• 7.83 + 6.52

• 6.62 + 8.73

• 22.98 - 7.63

• 24.07 - 8.72

Which problem could be represented using this bar diagram?

• Mrs. Beck has $250. She got $182 for her birthday. What is the total amount of money Mrs. Beck has now?

• Mrs. Ripke is driving 250 miles to see her brother. She has driven 182 miles so far. How much farther does she have to drive?

• Mr. Walker paid $250 for a new bike. He also paid $182 for accessories for his bike. What is the total amount Mr. Walker paid?

• Mrs. Jeffries' class collected 250 pounds of pop tabs in January. They collected 182 pounds of pop tabs in February. How many pounds of pop tabs did they collect in all?

Which expressions are equal to 750,000? Select all that apply.

• 75 x 10³

• 75 x 10⁴

• 75 x 10⁵

• 10,000 x 75

• 100,000 x 75

An online book store has 182 boxes of books in its warehouse. Each box has 32 books.

Which equation represents the best estimate of the total number of books in the warehouse?

• 180 x 30 = 5,400

• 180 x 40 = 7,200

• 190 x 40 = 7,600

• 200 x 40 = 8,000