Addition
Mary has recently started a stamp collection. For her birthday, she received 5 more stamps for her collection. She now has 14 stamps. Write an equation to represent s, the number of stamps she had before her birthday.
What is s + 5 = 14
-4 - 3 + 9 - 8 (expression or equation)
What is an expression?
Ashley had some candies and ate 3 of them. Now she has 48 candies left. Write an equation to find c, the number of candies she originally had?
What is c - 3 = 48
Mark is having some buddies over to spend the night and wants his mom to make omelets for breakfast. She bought 3 cartons of eggs. Mark does not know how many eggs are in each carton, but he knows there are 54 eggs in all. Write an equation that can be used to find x, the number of eggs in each carton.
What is 3x=54
The school is taking students who made honor roll all year on a field trip. Mrs. Fairbanks has seven students in her first period class that get to go. She realized that one-third of her class would be attending the field trip. Write an equation to represent how to find s, the number of students in Mrs. Fairbanks’ first period class.
What is x/3=7
24 is 6 more than a
number x. Is this an equation or expression.
Equation.
-21y = -756
What is 36