In each sentence below circle the keywords or phrases that indicate a mathematical operation write the symbol for The operation above the words or phrases. Write an expression for each sentence 1: The product of a number and 8÷4
2: five times a number decreased by eight
3: The sum of the square of a number and a second number
4: three times the difference of a number and seven
5: 9.85 less than the product of 37 and a number