Negative Numbers
What is -7 x 9?
-63
What is 4x6+5?
29
What is the median of these numbers: 2 4 3 9 4 8 5?
4
Solve for a: 5a = 35
a = 7
What is the area of a triangle with base 5 and height 10?
25
What is -108 divided by -12?
9
What is ((3x4)+6)x2?
36
What is the mean of these numbers: 2 4 3 9 4 8 5?
5
Solve for y: 9y - 4 = 77
y = 9
What is the area of a semicircle that has a diameter of 10? Use 3.14 for pi. You may use a calculator.
39.25
Rewrite as an addition problem: 12 - 5 = 7
12 + (-5) = 7
What is (4x((3-2)x1)-(3x2))+2?
0
If you have a fair coin, what are the odds of flipping 3 heads in a row?
1/8
Solve for b: 8(b + 4) = 72
b = 5
What is the volume of a cylinder that has a diameter of 8 and a height of 8? Use 3.14 for pi. You may use a calculator.
401.92
What is (-4) x (-5) x (-2) ?
-40
What is 5x(8-4x(3+2))-20?
-80
Jordan has a fair die and a fair coin. He rolls the die and flips the coin. What are the odds he rolls a 5 or a 6 AND lands on heads?
1/6
Solve for r: 6r - 7 = 2r +5
r = 3
There is a rectangle which is 5 feet long and 10 feet wide. Inside the rectangle is a triangle that is 4 feet long and 7 feet high. The triangle is colored blue, and the rest of the rectangle is colored red. What is the size of the red area, in square feet?
Rectangle total area = 5 feet*10 feet = 50 square feet
Area of blue triangle = 4 feet*7 feet*(1/2) = 14 square feet
Size of red area = 50 square feet - 14 square feet = 36 square feet
What is 6-(-(-(-(4))))?
10
What is 8-7x((6+5)-(4x3)+2-1)?
8
Jacob has a 10-sided die and a 2-sided coin. He notices that every time he rolls an even number, his coin comes up heads. He rolls an 8. Based on his observed frequencies (not based on a uniform probability model), what does Jacob expect are the chances his coin will come up heads?
1
Solve for t: 2t2 = 162
t = 9
There is an 8x8 square. Inside the square and touching all four sides of the square is a circle. The circle is shaded, but the rest of the square is blank. How big is the blank area? Use 3.14 for pi. You may use a calculator.
Area of square = 8*8 = 64
Area of shaded circle = 42*pi = 50.24
Size of unshaded area = 64 - 50.24 = 13.76