equation

123456
Across
  1. 4. operations operations which undo each other for example addition and subtraction are inverse operations
  2. 6. a mathematical sentence showing two expressions are equal an equation contains an equals sign
Down
  1. 1. sign a symbol of equality
  2. 2. property of equality if you add the same number to each side of an equation, the two sides remain equal
  3. 3. to replace a variable with a value that results in a true sentence
  4. 5. the value of a variable that makes an equation true