Unit 1. Fractions and decimals

1. Fractions. Rational numbers

   • Simplifying fractions
   • Equivalent fractions
   • Comparing fractions
   • Irrational numbers

2. Operations with fractions 

   • Fractions of an amount
   • Adding and subtracting fractions
   • Multiplying and dividing fractions
   • Combined operations with fractions
   • Word problems involving fractions

3. Decimal numbers. Irrational numbers

   • Types of decimal number
   • Transforming fractions into decimals
   • Transforming decimals into fractions
   • Using calculator

4. Real numbers

   • Absolute value

5. Approximations and errors.

   • Exact and approximate amounts
   • Significant figures
   • Managing errors

6. Intervals 

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