Estimating Fraction Sums and Differences
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Objective
I can estimate sums and differences of fractions and mixed numbers to the nearest half.
Part 1 of 4
Warm-up video
Khan Academy · 4:57Vetted channel
We don't generate video — this one is by Khan Academy 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 estimating the sum of two fractions, visualize each fraction to determine if it is more or less than one-half.
- 2
If you add two fractions together and each fraction is more than one-half, then the sum will be more than one whole.
- 3
Estimating fractions can be done by dividing a shape into equal sections to represent the denominator and shading in sections to represent the numerator.
Part 3 of 4
Practice
12 questions
Which fraction is closest to 1/2?
Estimate the sum of 2/5 + 5/8. Is the sum closer to 0, 1/2, or 1?
Part 4 of 4
Exit ticket
Quick comprehension check
“Estimate the sum of ½ + ⅚ to the nearest half. Show your thinking.”
Sample answer included in the free materials
Get the materials
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Teacher Guide
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Student Handout
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