Algebraic Vocabulary
A number that is divisible by one and itself
What is a prime number?
51 is ________ because...
51 is composite because it is divisible by 3.
Teri had 18 worms. She gave 4 worms to Susie and 3 worms to Jamie.
What is 18 − (4 + 3) ?
Stan spent $18 on giant carrots at the Giant Vegetable Store. He also bought a bag of giant peas, but the bag had no price tag. Stan was charged a total of $23. Which equation can help you find the cost of the peas?
What is 18 + p = 23 ?
3 × 15 + 2 × 7 – 10 = n
What is n = 49 ?
A mathematical phrase that has numbers and operation signs but does not have an equal sign.
What is a numerical expression?
47 is ________ because...
47 is prime because it is only divisible by one and itself.
José has 9 pens. He buys 3 more. He shares all the pens equally among 6 friends.
What is (9 + 3) ÷ 6 ?
For the bake sale, 6 people each bake two dozen oatmeal cookies. Each person eats 2 cookies and then delivers the remaining cookies to the bake sale. Which equation could be used to find, c, the number of oatmeal cookies at the bake sale?
What is 6 × 2 × 12 − 6 × 2 = c ?
112 = 7 × b
A letter or symbol that stands for an unknown number or numbers.
What is a variable?
57 is _______ because...
57 is composite because it is divisible by 1, 3, 19 and 57.
Mr. Richardson is driving to a town 85 miles away. He drives 35 miles per hour for 2 hours before stopping for lunch. He drives 6 more miles and stops for gas. Which expression shows how many miles Mr. Richardson has left to drive?
What is 85 − (35 × 2) − 6?
Rona has 4 packs of 12 glitter pens. She has 7 packs of 8 scented pens. She gives her friend a pack of glitter pens in exchange for a new pack of scented pens. How many pens does Rona have now?
What is ( 4 x 12 ) + ( 7 x 8 ) - 12 + 8 = p where p = 100 ?
4 x ( 9 x 3 + 4 ) +10 = c
What is c = 134 ?
A mathematical statement that is made up of two expressions connected by an equal sign.
What is an equation?
91 is ______ because...
91 is composite because it is divisible by 1, 7, 13 and 91
Fred’s Car Dealership has a three-floor parking garage with cars for sale. Each floor has 3 rows of 5 compact cars and 4 rows of 8 sedans. Write an expression you can use to find the number of cars in Fred’s garage.
What is 3 x [(3 x 5) + (4 x 8)] ?
Bella has potted plants on her patio. She has 4 pots with 3 begonia plants in each pot. She has 3 pots with 8 petunias in each pot. She plants 7 more zinnia plants in another pot. How many plants does Bella have on her patio?
What is ( 4 x 3 ) + ( 3 x 8 ) + 7 = f, where f = 43 ?
(14 + 5 ) + (14 +20 ÷ 4 ) = r
What is r = 38 ?
A number is able to be divided by another number if the quotient is a counting number and the remainder is 0.
What is divisible?
73 is ______ because...
73 is prime because it is only divisible by one and itself.
The principal conducted a school assembly every school day for a week. On Monday, 78 students attended. Then 6 classes with 25 students in each class attended each day for the next three days. On Friday, 8 classes with 32 students in each class attended the assembly. How many students attended the assembly?
What is 78 + 3 ( 6 x 25) + ( 8 x 32 ) = 484 ?
A store sells 8 small, 18 medium, and 20 large sweatshirts. Each sweatshirt costs $16. How much money, m, is the store paid for all the sweatshirts they sell?
What is m = $16 ( 8 + 18 + 20 ), where m = $736 ?
Add parenthesis to make this equation true:
8 + 2 x 3 - 4 = 26
What is (8 + 2) x 3 - 4 = 26 ?