Math Quiz

Maria is constructing a scale model of the Eiffel Tower in Paris, France. The Eiffel Tower is 1,083 feet tall. If the model is 1/100 the actual size of the Eiffel Tower, how tall is the model?

• 10.83 feet

• 10.83 feet

• 108.3 feet

• 1.083 feet

Is 0.48 × 10 = 4.8 correct?

True or False

• True

• False

Is 0.36 × 10 = 3.6 correct?

True or False

• True

• False

Is 0.01 × 100 = 0.1 correct?

True or False

• True

• False

Is 0.05 × 100 = 5 correct?

True or False

• True

• False

Jackson is responsible for purchasing chicken for his restaurant's special event. He needs enough chicken to prepare 1,000 servings. Each serving requires 0.35 pounds of chicken. How can Jackson determine the total pounds of chicken to buy?

• He should move the decimal 1 place to the left to buy 0.035 pound.

• He should move the decimal 1 place to the right to buy 3.5 pounds.

• He should move the decimal 2 places to the right to buy 35 pounds.

• He should move the decimal 3 places to the right to buy 350 pounds.

Maria is planning a large family barbecue and needs to buy beef for 100 burgers. Each burger requires 0.25 pound of beef. How can Maria calculate the total pounds of beef she needs to purchase?

• She should move the decimal 1 place to the left to buy 0.025 pound.

• She should move the decimal 1 place to the right to buy 2.5 pounds.

• She should move the decimal 2 places to the right to buy 25 pounds.

• She should move the decimal 3 places to the right to buy 250 pounds.

Sam is coloring a 10-by-10 grid to represent 0.07 × 5. How should Sam color the model? Sam should color _____ groups of _____ small squares for a total of _____ small squares.

• 7 groups of 5 small squares for a total of 35 small squares.

• 5 groups of 7 small squares for a total of 35 small squares.

• 5 groups of 5 small squares for a total of 25 small squares.

• 7 groups of 7 small squares for a total of 49 small squares.

• 3 groups of 10 small squares for a total of 30 small squares.

Alex is shading a 10-by-10 grid to represent 0.08 × 4. How should Alex shade the model? Alex should shade _____ groups of _____ small squares for a total of _____ small squares.

• 8 groups of 4 small squares for a total of 32 small squares.

• 4 groups of 8 small squares for a total of 32 small squares.

• 4 groups of 4 small squares for a total of 16 small squares.

• 8 groups of 8 small squares for a total of 64 small squares.

• 2 groups of 16 small squares for a total of 32 small squares.

Which calculations will result in a product with two decimal places? Select all the correct answers.

• 0.01 x 2.41

• 5.12 x 7

• 5 x 9.5

• 41.3 x 0.1

• 6 x 0.53