Open Up Resources Illustrative Math Unit 4 Mid-Unit Assessment
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
Question 1
1.
A circle has a mass of 3 grams and a square has a mass of 2 grams. Which is the mass of a triangle?
Question 2
2.
Solve this equation:
Question 3
3.
What type of solution does this equation have?
3x + 8 = 3x + 2 - 10
Question 4
4.
Does this equation have a solution that is positive, negative, or zero?
3x + 2 = -5
Question 5
5.
Order these steps to solving this equation:
x - 4(x - 1) = x + 2x + 3
6x - 9(x-1) = x + 2x + 3 (original equation)
-3x + 9 = 3x + 3
x = 16
6 = 6x
6x - 9x + 9 = x + 2x + 3
9 = 6x + 3
Question 6
6.
Did Ms. Allen solve this equation correctly?
8(x - 3) + 7 = 2x(4 -17)
8(x - 3) + 7 = 2x(13)
8x - 24 + 7 = 26x
8x - 17 = 26x
-17 = 34x
-0.5 = x
Question 7
7.
Match the equation balancing steps with the description of what was done in each step.
12x - 6 = 10
6x - 3 = 5
6x - 3 = 5
6x = 8
6x = 8
x = 8/6
4x + 2 = 12
2x + 1 = 6
Add 3 to both sides
Divide both sides by 2
Multiply both sides by 1/6
Question 8
8.
Which of the following would keep the hanger balanced?
Question 9
9.
Which equation could describe this hanger?
Question 10
10.
Clare asks Andre to play the following number puzzle:
Pick a number
Add 2
Multiply by 3
Subtract 7
Add your original number
Andre’s final result is 27. What number did he start with?
Question 11
11.
Each triangle weighs 2.5 pounds, each circle weighs 3 pounds, and x represents the weight of each square. Select all equations that represent the hanger.
Question 12
12.
Ms. Allen solved the equation but she knows she solved it incorrectly.
FIRST - Circle her mistake.
THEN - Solve the equation correctly.
Question 13
13.
Solve for n.
3(n+2)=9(6−n)
Just write the number.
Question 14
14.
Solve for x.
2x+7−5x+8=3(5+6x)−12x
Just write the number.
Question 15
15.
What type of solution does this equation have?
x−3=2x−3−x
Question 16
16.
Write the other side of this equation so that it's true for all values of x.
Question 17
17.
Solve for x.
3(x+5)=6
Just write the number.
Question 18
18.
Decide whether this equation is true for all, one, or no values of x.
9(x−2)=7x+5
Question 19
19.
Here is an equation:
What could you write after the "+" so that the equation would be true for all values of x? (Infinitely many solutions)
Question 20
20.
In a basketball game, Elena scores twice as many points as Tyler. Tyler scores four points fewer than Noah, and Noah scores three times as many points as Mai. If Mai scores 5 points, how many points did Elena score?