math

• Hypotenuse


  the longest side of a right triangle
• Pythagoras' Theorem


  a² + b² = c²
• Label a,b and c

  
• significant figures


  digits in a number starting from first non-zero digit on the left
• decimal place


  the position of a number to the right of a decimal point
• mixed number


  a number made up of a whole number and a fraction
• improper fraction


  a fraction whose numerator is larger than the denominator
• Mixed Number to Improper Fractions

  Multiply, then add! Keep the same denominator.
• Improper Fractions to Mixed Numbers

  How many times will the denominator go into the numerator without going over. Then how many little pieces are left over.
• add fractions


  get a common denominator and then add the numerators
• subtract fractions


  get a common denominator and then subtract the numerators
• multiply fractions


  Multiply numerators and denominators
• divide fractions


  When dividing fractions, don't ask why! Flip the second fraction and Multiply! (KCF)