| A | B |
| the sum of seven and 4 | 7 + 4 |
| the sum of seventeen and a number | 17 + n |
| four times a number increased by 4 | 4x + 4 |
| six times nine decreased by two | 6 x 9 - 2 |
| the sum of ninety and a number is 100 | 90 + x = 100 |
| one-third of twelve increased by four is twelve | 1/3 x 12+ 4 = 12 |
| twenty is three times a number increased by 10 | 20 = 3x + 10 |
| the product of a number, n, and 5 | 5n or 5 x n |
| double five increased by 200 | 2 x 5 + 200 |
| two times a number increased by four is seventy | 2x + 4 = 70 |
| one hundred less than a number | n - 100 |
| five-sixths of a number is 24 | 5/6 n = 24 |
| five times a number decreased by 8 | 5x - 8 |
| a number subtracted from 9 | 9 - n |
| 9 less than n | n - 9 |
| 18 divided by a number | 18 / n |
| a letter or symbol used to represent a number | variable |
| a mathematical statement without an equal sign | expression |
| a mathematical statement with an equal sign | equation |
| the sum of twelve and seven, decreased it by 4. Then, triple the answer. | 3 x (12 + 7 - 4) |
| Johhny had five apples. He quadrupled his amount and then placed the apples into two equal bags. | (5 x 4) ÷ 2 |
| Multiply the difference of twelve and seventeen by three | (17 - 12) x 3 |
| the product of nine and seven added to the quotient of twenty-four and twelve | (9 x 7) + (24 ÷ 12) |
| four times greater than eight | 8 x 4 |
| the quotient of eight and four | 8 ÷ 4 |
| six times more than the sum of three and four | 6 x (3 + 4) |
| subtract seven from twelve and multiply by eight | (12 - 7) x 8 |
| ten more than the product of eight and nine | (8 x 9) + 10 |
| Anna had twelve ice cream cones that she equally shared with four friends | 12 ÷ 4 |
| Peppa had seven purple pens. She double her amount and then gave three pens to her family. | (7 x 2) - 3 |
| triple the difference of eight and five | (8 - 5) x 3 |
| You have $10 in your wallet. You earn $20 more but spend $5. | 10 + 20 -5 |
| Add seven to the product of three and two | (3 x 2) + 7 |
| answer to an addition problem | sum |
| answer to a subtraction problem | difference |
| answer to a multiplication problem | product |
| answer to a division problem | quotient |
| grouping symbols, solve first | parentheses |