Number Sense and Algebraic Thinking
Is the number 23 prime or composite? Explain.
Prime...only factors are 1 and itself
What is the area of a square with a side length of 7 feet?
49 square feet
0.32 + 0.065 = ?
0.385
Write out the prime factorization of 120 using exponents.
2^4 * 3
A baker cooks 15 cakes in 3 hours. How many cakes will be back in 8 hours? How many cakes does he bake per hour (unit rate)?
40 cakes in 8 hours
5 cakes per hour
1/8 + 5/12 = ?
13/24
Which is bigger: 40% of 20, or 30% of 30?
30% of 30 is bigger.
Mean= average, Mode=most, Median= middle #
What is the mode of the following data set?
10, 12, 10, 15, 15, 10, 20, 25, 10, 18, 13
10 (because it is listed the most times in the data set)
1.4 x 0.36
0.504
A class got the following test scores: 84, 93, 68, 100, 40 What is the average test score? (the mean)
77
On a map, the scale is 1/2 inch = 5 miles. How far apart are two cities in real life if they are 4 1/2 inches apart on the map?
45 miles
Solve 3/20 x 4/11
3/55
(5 - 2.8) / 0.11 = ?
20
To ride The Giant Dipper you must be taller than 5 feet. Write an inequality representing this information.
h > 5
Order the following #'s from least to greatest
(hint: convert to the same type of number)
1/4, .33, 10%, 3/4, 2
10%, 1/4, .33, 3/4, 2
(.10, .25, .33, .75, 2.0)
What is the area of a triangle that has a base of 12 inches and a height of 6 inches?
36 inches squared
Solve: Do 7/12 divided by 5/6. Then take your answer and add 4/5.
Write your answer as a mixed number in simplest form!
1 1/2
31.362 / 4.8 = ?
6.533