VOCABULARY
the number that does the dividing
What is a divisor
If one factor is 0, the product is 0
13 less than a number b
What is b-13
There are 42 cats and 12 dogs. Write the dog to cat ratio.
What is 2/7.
The formula for area of a parallelogram and a rectangle.
What is bh.
numbers that have only 2 factors: 1 and itself
What is prime numbers
25 + 0
If one of the addends is 0 then the sum is the other addend
what is the identity property of addition
Three times the speed n
What is 3n
Jo can read 15 pages in 32 minutes. If she reads 45 pages, how many minutes will that take her?
What is 96 minutes or 1h36m.
The formula for the area of a triangle.
What is bh/2.
two numbers whose product is one
What is a reciprocal
45 x 65 = 65 x 45
changing the order of the factors doesn't change the product
DOUBLE JEOPARDY
What is the commutative property
Joe mows lawns for $15 an hour. He also charges a first time fee of $20. What does he charge to mow for the summer?
What is $15h + $20.
Henry can run 12 miles in 2 hours. He runs 18 miles in ?
What is 3 hours.
The base of the parallelogram is 20 in. The width is 15 in. and the height is 14 in. The area of one of the triangles is...
What is A=140 sq. in.
two numbers whose sum is 0
What are opposites
how you group the addends does not change the sum
(a + b) +c = a + (b + c)
what is the associative property of addition
Eight times the quantity of a number divided by 9
8(n/9)
A proportion is a true statement that...
What is 2 ratios are equal.
One base of the trapezoid is 14 in and the other base is 19 in. The height is 13 in. The area of the trapezoid is...
What is A =214.5 in 2.
counting numbers, their opposites and zero
What is integers
a( b + c) = ab + ac
34 x 8= (30 x 8) + (4 x 8)
What is the distributive property
An electrician charges $45 per hour and spends $20 a day on gasoline. Write an algebraic expression to represent his earnings for one day.
What is $45h-$20
Mrs. Schneider can eat 3 pieces of popcorn in 7.5 seconds. If she eats 11 pieces of popcorn, how long will that take her?
What is 27.5 seconds.
The volume of a cube is 8000 cm 3. The side length is ...
What is 20 cm.