1. add the sum of 38 and 16 25 then subtract the product of 9 and 4 2. four times the difference of 16 and 10 added to the sum of 12 and 22 3. multiply the difference of 25 and 13 by the quotient of 72 and 9 4 divide the sum of 40 and 80 by 12 and multiply the result by 5 5 add the product of 4² and 52 the difference of 35 and 3³