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Unit 5 - Lesson 14 - Grade 5: Illustrative Mathematics

Last updated 9 months ago
10 questions
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Grade 5 Unit 5
Lesson 14: Make Sense of Decimal Subtraction
CC BY 2021 Illustrative Mathematics
Grade 5 Unit 5
Lesson 14: Make Sense of Decimal Subtraction
CC BY 2021 Illustrative Mathematics
Lesson: Make Sense of Decimal Subtraction

True or False: Decimal Differences (Warm Up)

Decide if each statement is true or false. Be prepared to explain your reasoning.
1

1

Explain your reasoning.

1

1

Explain your reasoning.

1

1

Explain your reasoning.

The Difference

1

Find the value of 2.26 - 1.32 . Explain or show your reasoning.

1

What questions do you have about subtracting decimals?

Target Numbers: Subtract Tenths or Hundredths

Play one round of Target Numbers.

Partner A:
  • Start at 2. Roll the number cube. Choose whether to subtract that number of tenths or hundredths from your starting number.
  • Write an equation to represent the difference.

  • Take turns until you’ve played 6 rounds.
  • Each round, the difference from the previous equations becomes the starting number in the new equation.
  • The partner to get a difference closest to 1 without going under wins.
1

Describe a move that you could have made differently to change the outcome of the game.

Cool Down: Subtract
1

Find the value of 3.57 - 1.4 . Explain or show your reasoning.