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
Decide if each statement is true or false. Be prepared to explain your reasoning.
Explain your reasoning.
Find the value of 2.26 - 1.32 . Explain or show your reasoning.
What questions do you have about subtracting decimals?
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.
Describe a move that you could have made differently to change the outcome of the game.
Find the value of 3.57 - 1.4 . Explain or show your reasoning.
Explain your reasoning.
Explain your reasoning.