Operations & Algebraic Thinking
The sum of two numbers is 96. If one number is 42, what is the other number?
54
(96 - 42 = 54)
Write the expanded form of the number 3,457.
3,000 + 400 + 50 + 7
Add the fractions 1/8 and 3/8.
4/8 or 1/2
How many inches are in 2 feet?
24 inches
What is the perimeter of a square with a side length of 5 centimeters?
20 centimeters
(5cm + 5cm + 5cm + 5cm = 20 centimeters)
Sarah has 28 marbles. She wants to share them equally among 7 friends. How many marbles will each friend receive?
4 marbles
(28 ÷ 7 = 4)
What is the value of the digit 6 in the number 864?
60 (6 tens)
Subtract the fraction 2/3 from 1 whole.
2/5
(since 3/5 is what's left, 5/5 - 3/5 = 2/5)
How many ounces are in 1 pound?
16 ounces
Which geometric shape has all sides of equal length and all angles of equal measure?
A square
A box contains 48 pencils. If each pencil case can hold 6 pencils, how many pencil cases can be filled?
8 pencil cases
(48 ÷ 6 = 8)
Perform the addition: 2,345 + 409.
2,754
If 3/5 of a pizza is left, what is the fraction that has been eaten?
2/5
(since 3/5 is what's left, 5/5 - 3/5 = 2/5)
The duration of a movie is 2 hours and 30 minutes. If the movie starts at 7:15 PM, at what time will it end?
9:45 PM
(7:15 PM + 2 hours 30 minutes = 9:45 PM)
What is the area of a rectangle with a length of 12 units and a width of 8 units?
96 square units
(12 units × 8 units = 96 square units)
Emily saved a total of $45 by the end of the week. If she saved $9 each day, how many days did it take her to save the money?
5 days
(45 ÷ 9 = 5)
Round the number 876 to the nearest hundred.
900
If 2/5 of a bag contains red marbles and there are a total of 20 marbles, how many marbles are red?
There are 8 red marbles
(20 ÷ 5 = 4 * 2 = 8)
Alex has a savings goal of $120. If he saves $5 per week, how many weeks will it take for Alex to reach his goal?
24 weeks
(120 dollars ÷ 5 dollars per week = 24 weeks)
How many right angles are in a square?
4
What are all the factor pairs for the number 72?
(1, 72), (2, 36), (3, 24), (4, 18), (6, 12), (8, 9)
Write the number five thousand, seven hundred sixty-two in standard form.
5,762
What is the definition of a fraction?
A fraction is a part of a whole or a division of a quantity into equal parts.
Mary worked at her part-time job for 5 hours and earned $8 per hour. How much money did Mary earn in total?
$40
(5 hours x $8 per hour = $40)
What is the definition of a ray?
A straight row of points that starts at one point and goes on forever in one direction.