Example:  Write an expression for "the sum of 10 and 5."

  Example:  Write an expression for "the difference between 10 and 5."

  Example:  Write an expression for "the product of 10 and 5."

  Example:  Write an expression for "the quotient of 10 and 5."

  Example:  Write an expression for "Increase 10 by 5."

  Example:  Write an expression for "Decrease 10 by 5."

PARENTHESES are used to indicate operations to be done first.

  Example:  Write an expression for "First, add 10 and 5, then multiply by 2."



  Example:  Write an expression for "Divide 30 by the sum of 10 and 5."

When adding a positive number to a value, the value is increased.
When adding a positive number to a value, the result is more than the value.

  Example:  4 + (2,345 + 67)

    The value of the expression is 4 more than 2,345 + 67.

When subtracting a positive number from a value, the value is decreased.
When subtracting a positive number from a value, the result is less than the value.

  Example:  (2,345 + 67) - 4

    The value of the expression is 4 less than 2,345 + 67.

When multiplying a value by a positive number, the product is that many times as large as the value.

  Example:  4 × (2,345 + 67)

    The value of the expression is 4 times as large as 2,345 + 67.