Exam Edge Math Test 2

At the age of four, children will recognize collections of ___.

4

A machine can perform 40 identical tasks in 4 hours. At this rate, what is the minimum number of machines that should be assigned to complete 90 of the tasks within 2 hours?

5 The key is to find out how many machines are needed to do a certain number of tasks in 2 hours. If one machine can do 40 tasks in 4 hours, in 2 hours it will complete 20 tasks. So, if there are two machines, that is 40 tasks, three is 60 tasks, four is 80 tasks, and five is 100 tasks. Using four machines is not an option as the goal is to do 90 tasks.

Multiply: 13 • 535

6955

Solve: 4/9 + m = 9

8.555...

Using the term addition is an example of a(n) _____.

Abstraction Mathematical language is an abstraction of quantity. Addition is the abstraction for combining. Multiplication, division, and subtraction are also abstractions.

Benjamin Bloom's six level taxonomy rates the hierarchical status of learning. Which level is vital to solving math word problems?

Analysis Students must be able to analyze word problems, breaking down component parts and examining parts for inferences. They must be able to find important information, decide what operation(s) may be needed, and solve the problem.

What is the correct alternative representation for the number 150?

CL C is the Roman numeral for 100. L is the Roman numeral for 50. Together, they represent 150.

Mathematics standards indicate that early math programs should do which of the following?

Shift from rote memorization to reasoning.

The lines that join the points of a polygon are known as which of the following?

Sides

Carla divides her pizza into 8 equal slices. If converted to a fraction, 8 would be ___________.

the denominator The denominator, or bottom number of a fraction, represents the whole. The numerator, or top number of a fraction, represents a part of the whole.

Which of the following would you use in the initial introduction to two polynomials?

(X+7)(4X+1) The concept of polynomials is best introduced with positive values. Negative values may be confusing in multiplication. The other answers are negative values.

If x - 2y = 0 and -2x + y = 2, then 3x -3y =

-2 The correct answer is: - 2. To find the value of 3x - 3y, subtract the equations given. Remember to distribute the negative sign, which will change all the signs in the second equation. x - 2y = 0 - 1 (- 2 + y) = - 1 (2) = 3x - 3y = -2