Most Common Mistakes
Triangles
Convert that number
Finish this sentence
Name that Math Word
100
Davis multiplied -15 by -2 and got -30. What was his mistake?
Two negatives make a positive (30)
100
The hypotenuse of a right triangle is located how?
By finding the side of the triangle across from the right angle
OR
if lengths are given, it is the longest side of the triangle
100
Convert 180% into a decimal.
1.8
100
Finish this sentence:
"Undo a square..."
SQUARE ROOT
100
If you are asked to find the product of a set of numbers, you must do this.
Multiply.
200
Amelia calculated 2.556, but needed to round her answer to the nearest tenths place. She gave the answer 2.5, which was incorrect. What did she do wrong?
She needed to round up (2.6)
200
In order to create a triangle, the two shortest sides must do what?
Add up to longer than the longest side
200
Convert 40% into a decimal
.40
200
According to MADSEM,
when you are Multiplying bases, you do what with their exponents?
Add them
200
To find the quotient of two numbers, you must do this.
Divide.
300
Ronald calculated 156.34 to the nearest hundredths place and got a final answer of 156.3. What did he do wrong?
He rounded to the wrong place. The correct answer is 156.34.
300
The remote interior angles of a triangle can be added to find the __________ angle of a triangle.
Exterior
300
Convert this fraction into a decimal:
4 3/5
4.6
300
If it's ____ or less
Let it rest
______ or more
Raise the score
4 or less
5 or more
300
The numbers in front of a variable.
Coefficient
400
Natalie solved an equation 3x=12 and got 9. What did she do wrong?
She subtracted 3 instead of dividing by 3. Correct answer x=4.
400
Find the hypotenuse of this triangle (round to nearest tenths if necessary):
c=10
400
Convert this fraction into a decimal (round to nearest hundreths if necessary).
16/3
5.33
400
Kendrick Lamar's song "Not Like Us" was inspired by this rapper.
Drake
400
What is the name of the property you would use to create an expression equivalent to this:
6x(x+4)
Distributive Property
500
Caroline stated the following. What was her mistake?
2pi>sqrt39
pi>root(3)28
sqrt90=root(3)90
The square root of 90 and the cubed root of 90 are not equal.
sqrt90>root(3)90
500
Could these measurements be used to create a triangle?
15.4, 5.7, 9.7
No. 5.7+9.7=15.4. The two shortest side lengths need to be longer than the longest side.
500
Convert this number into decimal form (round to nearest tenths place if necessary).
pi/2
1.6
500
Finish this sentence:
When solving an equation, what you do to one side...
you do to the other.
500
Name this artist:
Taylor Swift