Number Operations
Solve:
5/8 + 2/8 = ?
7/8
A spinnter has equal-sized sections: red, blue, and green. What is the probability of landing on blue as a fraction?
1/3
Find the perimeter of a rectangle with length 6 units and width 3 units.
18 units
Evaluate the expression when x = 3.
x + 5
8
What is 5 + (-3)?
2
3.75 + 0.48. Give your answer to the hundredths place.
4.23
A bag contains 5 red marbles and 5 blue marbles. You pick one at random. What is the probability it is red?
50%, 1/2, or 5 out of 10.
Find the area of a rectangle with length 7 units and width 4 units
7 x 4 = 28 square units
3x = 24
8
Evaluate:
-4 x 3
-12
Multiply 7 x 8
56
A bar graph shows 8 students chose apples, 12 chose bananas, 4 chose cherries. What fraction of students chose bananas?
12/24
30 units cubed
Write an equation for the rule: "Start with input, multiply by 6." Then find the output for input 4.
6 x 4 = 24
12 divided by -3
-4
A fuction rule is "multiply by 4 then add 3" What is the output when the input is 5?
23
You roll one fair 6-sided die. What is the probability of rolling an even number?
3/6
The area of a rectangle is 48 square units and its width is 6 units. What is the length?
48 divided by 6 = 8 units
Solve:
2x + 7 = 19
x = 6
(-2) x (-7)
14
Using an input/output table: What is the rule and the output for 9?
Input : Output
2 5
4 11
6 17
9 ?
3 x 9 - 1 = 26
A probability model predicts 1/4 chance of event A. If you perform the experiment 200 times, how many times would you expect event A to occur?
1/4 x 200 = 50
A right rectangular prism has volume 240 cubic cm. If its base is a rectangle 6 cm by 5 cm, what is its height?
240 divided by (6x5) = 8 cm
3/4 - 2/4 = ?
1/4
The temperature is -6 degrees. It rises 9 degrees. What is the new temperature?
(-6) + 9 = ?
3 degrees