Math F.A.S.T.

• To compare a fraction and a decimal. Divided the top number by the bottom number times 100
• Find the reciprocal of a fraction by switching the numerator and the denominator.
• To divide a improper fraction and a whole number. Turn this from a division problem into a multiplication problem by multiplying by the reciprocal.Cancel common factors, then multiply. To cancel common factors divided by the gcf.
• To find the unit price. Divide the total cost by the number of things.
• How to find prime factorization. Divide by prime factors until the quotient is 1.
• • If both integers have the same sign, add their absolute values (ignoring the sign) and keep the common sign for the result.
  • If the integers have different signs, subtract the absolute value of the integer with the smaller absolute value from the absolute value of the integer with the larger absolute value. The result takes the sign of the integer with the larger absolute value.
  • If one integer is zero, the result is the other integer.
• Right Up, Left Up, Left Down, Right Down is a phrase to remember the order of quadrants.
• So, to find the area of a triangle, you multiply the length of the base by the height, and then divide by 2.
• The mean is the average of all the numbers in a data set.
• The mode is the number that appears most frequently in a data set.
• The median is the middle number in a data set when the numbers are arranged in order.
• Any number to the zeroth power is equal to 1.
• • Keep: Keep the first fraction as it is.
  • Change: Change the division sign to multiplication.
  • Flip: Flip the second fraction (take its reciprocal).