Vocabulary
Number Theory
Fractions
Probability
Measurement
100
A number with exactly two factors only
prime number
100
What is the prime factorization of 48
2 x 2 x 2 x 2 x3
100
What is the simplest form of 15/75?
1/5
100
If there are 40 marbles in a bag and 5 of them are red, what is the theoretical probability of pulling out a red marble?
1/8
100
How many feet are there is 5 yards? (1 yd = 3 ft)
15 ft
200
When a composite number is written as the product of its prime factors, it is a ...
prime factorization
200
What is the LCM of 6 and 9?
18
200
How do you know when a fraction is in its simplest form?
When the only common factor of the numerator and the denomination is 1
200
What is the difference between theoretical probability and experimental probability?
Theoretical probability is the total number of favorable outcomes out of total number of possible outcomes. It is an educated guess of what may happen. Experimental probability is the total number of favorable outcome out of total number of trials. It is based on actual results.
200
How many cups are there in 32 fl oz? (1 c = 8 fl oz)
4 cups
300
It is used to compare two quantities with the same units
Ratio
300
What is the GCF of 12 and 18
6
300
How many 1/4 are there in 20?
80
300
How many possible combinations of smoothie are there if I can combine apple, orange, pineapple or strawberries with ice water, yogurt or milk?
12 combinations
300
Which measurement is more precise, 1/2 ft and 1 in?
1 in, because it is a smaller unit.
400
A selection of items in which order is important
arrangement
400
What is the LCM of 3, 6 and 7
42
400
What is the first step that you should do when you multiply mixed numbers?
Convert the mixed numbers into fractions
400
How many possible arrangements of books are there if Alex wants to put his Science encyclopedia, Thai history book, Music book and Calculus book in order?
24 arrangements (4 x 3 x 2 x 1 = 24)
400
The map distance between Springfield and Pizzaland is 5.5cm and the scale is 1cm : 2.5 km. What is the actual distance between these two places?
13.75km
500
A reasonable guess of an event
Prediction
500
What is the GCF of 12, 14 and 16?
2
500
When 5 - 1/8, what is the first step that you should do to solve the problem?
Rename 5 to 4 and 8/8.
500
If Alan pulled out a blue sock 5 times out of 35 trials, how likely will he pull out a blue sock in the next 14 trials?
2 times, because the experimental probability of pulling out a blue sock is 1/7.
500
Kelly went hiking on the York National Park. The total trail is about 6 miles. She finished 4 miles and 1000 yards in 3 hours. How many miles and yards are left? (hint: 1 mile = 1,760 yards)
1 mile and 760 yards are left.