Dividing Decimals by Decimals

Warmup

Answer the following questions.

Activity #1

Here is a diagram representing a base-ten number. The large rectangle represents a unit that is 10 times the value of the square. The square represents a unit that is 10 times the value of the small rectangle.

(1.) If a large rectangle represents 1,000, what division problem did the second diagram show? What is its answer?

(2.) If a large rectangle represents 100, what division problem did the second diagram show? What is its answer?

(3.) If a large rectangle represents 10, what division problem did the second diagram show? What is its answer?

Challenge #1

(1.) Use long division to find the value of 5.04 ÷ 7.

(2.) Select all of the quotients that have the same value as 5.04 ÷ 7.

Challenge #2

A bag of pennies weighs 5.1 kilograms. Each penny weighs 2.5 grams.