Lesson 5: Practice Problems

Problem 1

  1. Find the product of each number and .

    122.1

    11.8

    1350.1

    1.704

  2. What happens to the decimal point of the original number when you multiply it by ? Why do you think that is? Explain your reasoning.

Problem 2

Which expression has the same value as ? Select all that apply.

  1. 0.00924

Problem 3

Calculate the value of each expression by writing the decimal factors as fractions, then writing their product as a decimal. Show your reasoning.

Problem 4

Write three numerical expressions that are equivalent to .

Problem 5 From Unit 5 Lesson 3

Calculate each sum.

Problem 6 From Unit 5 Lesson 4

Calculate each difference. Show your reasoning.

Problem 7 From Unit 1 Lesson 3

On the grid, draw a quadrilateral that is not a rectangle that has an area of 18 square units. Show how you know the area is 18 square units.

A blank coordinate plane with 16 evenly spaced horizontal units and 12 evenly spaced vertical units.