Rational or Irrational?High School · Number & Quantity · HSN-RN.B.3
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High School · Number & Quantity · Arcade · Ages 14–18

Rational or Irrational?

Maths standardHSN-RN.B.3Classify numbers, and explain why sums and products of rational and irrational numbers are rational or irrational.

  1. Rational = can be written as a/b with integers.
  2. Repeating or ending decimals are rational.
  3. Simplify first: √2 × √8 is just 4!
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