Show:
Vocabulary
Factors
Probability & Ratios
Number Models
Multiplication Counting Principle
100
Definition: Numbers multiplied to give a product. ex: 2 and 3
What is a factor?
100
Make a factor tree for 90.
3 x 3 x 5 x 2
100
If a spinner is divided into 8 equals sections labeled 1-8, what are the chances you will land on an even number?
What is a 50-50 chance.
100
A jet travels 460 miles in 5 hours. At this rate, how far could the jet fly in 10 hours? Write the number model as well as the answer.
What is 920 miles. 5/460 = 10/x
100
How many different pairs shoes can you get from a store that has 6 different styles in 8 sizes?
What is 48.
200
Definition: Two factors of a counting number whose product is the number. A number may have more than one of these. ex: 1 x 18, 2 x 9, 3 x 6
What is a factor pair?
200
Which prime factors do 75 and 90 have in common?
What is 3 and 5.
200
Caitlin bought a medium pizza. She wants to cut the pizza so that it can be shared equally by 2 people, 5 people or 10 people. Into how many slices should Caitlin cut the pizza?
What is 10 slices.
200
A ferris wheel can accommodate 45 people in 30 minutes. How many people could ride the ferris wheel in 3 hours? Write the number model as well as the answer.
What is 270 people. 30/45 = 180/x
200
If you can get 6 kinds of pens in 2 different point sizes and 5 ink colors, how many different pens are available?
What is 60.
300
Definition: A counting number that has more than 2 different factors.
What is a composite number?
300
What is the greatest common factor of 10 and 75?
What is 5.
300
There are 24 students in Mrs. Faulk's class. Two-thirds of her class rides the bus to school. The other students walk or ride the train. How many students walk or ride the train?
What is 8 students.
300
An ice cream factory makes 300 quarts of ice cream in 5 hours. How many quarts could be made in 12 hours? Write the number model as well as the answer.
What is 720 quarts of ice cream. 5/300 = 12/x
300
The menu has 9 different sandwiches and 9 flavors of drink. How many lunch combinations can you choose from?
What is 81.
400
Definition: A counting number that has exactly 2 different factors: itself and one.
What is a prime number?
400
What is the least common multiple of 15 and 30?
What is 30.
400
Sarah was playing Name That Number. Of the 20 cards she turned over, 60% were black. How many black cards were there?
What is 12 cards.
400
The bakers at Healthy Bakery can make 150 bagels in 2 hours. How many bagels can they bake in 23 hours? Write the number model as well as the answer.
What is 1,725 bagels. 2/150 = 23/x
400
This model of computer comes with 7 different processor speeds, 5 hard drive capacities and 4 different memory sizes. How many configurations are there?
What is 140.
500
Definition: A counting number written as a product of two or more of its factors. The number 1 is NEVER part of this.
What is a factor string?
500
What is the least common denominator for the fraction pair: 5/14 and 2/21?
What is 42.
500
Part 1. Four of of 9 cards parked on one street were red. If there were 36 cars, how many cars were red? Part 2. What is the ratio of cars that were not red to total cars?
Part 1: What are 16 red cars. Part 2: 20/36 or 5/9 or 20:36 or 5:9
500
Gas mileage is the number of miles you can drive on a a gallon of gasoline. A test of a new car results in 600 miles on 10 gallons of gas. How far could you drive on 45 gallons of gas? Write the number model as well as the answer.
What is 2,700 miles. 10/600 = 45/x
500
This window comes in 5 different styles, 11 different sizes, 8 different colors and with 2 different kinds of glass. How many possible combinations of this window are there?
What is 880.