Adding and Subtracting Decimals
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Objective
I can add and subtract decimals accurately.
Part 1 of 4
Warm-up video
Miacademy & MiaPrep Learning Channel · 11:30Vetted channel
We don't generate video — this one is by Miacademy & MiaPrep Learning Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
When adding or subtracting numbers with decimals, it is important to arrange the numbers vertically and align them by their decimal points.
- 2
Placeholder zeros can be added to the end of a decimal number without changing its value to help keep digits organized by place value.
- 3
We use the same addition and subtraction algorithms for decimals as we do for whole numbers, and it's helpful to bring down the decimal point first.
Part 3 of 4
Practice
3 questions
A chef is preparing a recipe that calls for 0.75 liters of milk and 1.2 liters of water. How much liquid is needed in total?
A plant grew to a height of 15.3 centimeters. Last week, it was 12.85 centimeters tall. How much did the plant grow this week?
Part 4 of 4
Exit ticket
Quick comprehension check
“Mia bought a new baseball bat for $35.99 and a baseball glove for $28.50. She paid with a $70 bill. How much change did Mia receive? Show all your work.”
Sample answer included in the free materials
Get the materials
Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
Complete lesson plan with answer keys and alternate activities
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