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You arrange for basic arithmetic calculations using the +, -,
*, and / operators for
addition,
subtraction,
multiplication, and
division:
6 + 3 /* Add, evaluating to 9 */ 6 - 3 /* Subtract, evaluating to 3 */ 6 * 3 /* Multiply, evaluating to 18 */ 6 / 3 /* Divide, evaluating to 2 */ 6 + y /* Add, evaluating to 6 plus y's value */ x - 3 /* Subtract, evaluating to x's value minus 3 */ x * y /* Multiply, evaluating to x's value times y's value */ x / y /* Divide, evaluating to x's value divided by y's value */