Fern has 7 red pens and b blue pens. How many pens does Fern have?
What is "7 + b" pens?
Roger bought some used CDs at a garage sale. He gave 9 CDs to his dad and kept 12 of them for himself. How many CDs did Roger buy at the garage sale?
What is "c - 9 = 12" or "c - 12 = 9" or "9 + 12 = c" or 12 + 9 = c"?
25y + 8y
What is an "33y"?
A(n) _________________ is an unknown part of an equation, represented by a letter.
What is a variable?
Felicia and Sam sold 103 muffins at the bake sale. Felicia sold 25 muffins. How many muffins did Sam sell at the bake sale?
What is "45 + s = 103" or "s + 45 = 103" or "103 - 45 = s" or 103 - s = 45"?
x - 45 = 88
What is "x = 133"?
6(3t - 4)
What is "18t - 24"?
Each group of variables and numbers, separated by addition and subtraction signs, is called a(n) _____________ of the equation.
What is a term?
8n + 12 + n - 4
What is "9n + 8"?
Two expressions set equal to each other creates a(n) _______________.
What is an equation?
7(6 + r) - r + 13
What is an "6r + 55"?
A(n) ________________ is a combination of numbers, variables, and symbols that illustrate a mathematical relationship
What is an expression?
x/7 - 4 = 3
What is "x = 49"?
20a + 75/3 + a - 3 + 2(4a + 6)
What is an "29a + 34 "?