| A | B |
|---|
| adding and subtracting decimals | 1. line up decimals in problem and answer. 2. add or subtract |
| multiplying decimals | 1. multiply 2. count the digits to the right of the decimal in both numbers in the problem. 3. loop numbers from right to left that number of times and place the decimal there |
| dividing by decimal numbers | 1. use loops to move decimal so that divisor is a whole number. 2. loop the dividend the same number of spaces. 3. place a decimal in the divisor and the quotient, answer in the same place. Divide |
| multiplying and dividing integers | If the signs are the same the answer is positive. If the signs are different the answer is negative |
| adding integers | If both the numbers are both positive, the the answer is positive. If the numbers are negative then the answer is negative. |
| adding integers with different signs | subtract the numbers and take the sign of the number with highest absolute value. |
| adding fractions | Find lcd, lowest common denominator. Change both fractions so they have the same denominator. Add |
| variable | a symbol, usually a number that stands for a letter |
| coefficient | the number in front of the variable |
| constant | the number which does not have a variable with it |
