Vocabulary
This is a letter or symbol that represents an unknown number in an algebraic expression.
What is a variable?
Factor the expression 4x−12.
What is 4(x−3)?
A class has 12 girls and 8 boys. The ratio of girls to boys is this.
What is 12:8 or 3:2?
This percent means “25 out of 100.”
What is 25%?
The ratio of cats to dogs at an animal shelter is 3:5. If there are 5x dogs, this expression represents the number of cats.
What is 3x?
In the expression 4x+7, these are the parts separated by addition or subtraction signs.
What are terms?
Factor the expression 5y+15.
What is 5(y+3)?
If there are 15 apples and 5 oranges, the ratio of apples to oranges is this simplified ratio.
What is 3:1?
A student answered 18 out of 20 questions correctly. This is the percent correct.
What is 90%?
A car travels 180 miles in 3 hours. This is the unit rate in miles per hour.
What is 60 miles per hour?
To solve 3(x+5), you multiply 3 by every term inside the parentheses. This process is called this.
What is distribute (or the distributive property)?
Factor the expression 6a−18.
What is 6(a−3)?
A recipe uses 2 cups of milk for every 3 cups of flour. This is the ratio of milk to flour.
What is 2:3?
Find 50% of 80.
What is 40?
A recipe uses the ratio 2:7 for sugar to flour. If a baker uses 21 cups of flour, this many cups of sugar are needed.
What is 6 cups?
A number written in front of a variable that tells how many of the variable there are, such as the 6 in 6y.
What is a coefficient?
Factor the expression 3m+9−6n.
What is 3(m+3−2n)?
In a bag of marbles, the ratio of red marbles to blue marbles is 4:5. If there are 20 blue marbles, there are this many red marbles.
What is 16?
A shirt costs $40 and is on sale for 25% off. The amount of the discount is this much money.
What is $10?
I am an odd number. Take away one letter and I become even.
What is seven?
This is a mathematical sentence that shows two expressions are equal, such as x+4=10.
What is an equation?
Factor the expression 8p−4q+20.
What is 4(2p−q+5)?
A map uses the scale 1 inch : 10 miles. If two cities are 4 inches apart on the map, they are this many miles apart in real life.
What is 40 miles?
This is 30% of x +2y = 100, when y=35. X = ?
What is 100.
Using only addition, how can you add eight 8’s together to get 1,000?
What is 888+88+8+8+8=1,000?