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Khan Academy (English - US curriculum)
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Khan Academy (English - US curriculum)
Math by grade
Illustrative Mathematics
8th grade (Illustrative Mathematics)
Unit 8: Pythagorean theorem and irrational numbers
Lesson 4: Square roots on the number line
Lesson 4: Square roots on the number line
Approximating square roots to hundredths
Comparing irrational numbers with a calculator
