Adding & Subtracting
-20
Find the product: 8(-10)(-2)
160
Simplify: -20 + 15 x 2 - 3
7
Order the numbers from least to greatest: -3.5, 0, 1.5, -1
-3.5, -1, 0, 1.5
Define: Absolute Value
A number's distance from zero
Simplify: -2 - (-5) + 7
10
The sign of the product of -18(-17)6(-11) is …. because…
Negative because there are an odd number of negative signs
Simplify: 8 + 4 x 2
16
Which number is smaller: 3/4 or 5/6?
3/4
Define: Integer
Positive and negative whole numbers
Steven’s bank account is overdrawn by $75, which means his new balance is -$75. Steven gets $100 for his birthday and deposits it into his account. How much does he have in the bank now?
$25
Which of the following expressions are positive?
12(-3)
12/3
(-12)(-3)
-12/(-3)
2, 3, 4, and 5
Simplify: 18 ÷ (3 × 2) + 4
7
Which number is the greatest? -2/3, -0.4, -1.25
-0.4
Define: Rational Number
Any number (positive or negative) that can be expressed as a fraction or a decimal that is repeating or terminating.
A sunken treasure chest is resting 800 meters below sea level. Above the chest, a submarine is navigating 500 meters below sea level. High above both, a helicopter is flying at 1,200 meters above sea level.
Which statement is true?
A. The submarine is 300 meters above the treasure chest.
B. The helicopter is 700 meters below the submarine.
C. The submarine is 1,700 meters above the helicopter.
D. The treasure chest is 1,000 meters above the helicopter.
A
Which number makes the division number sentence true?
-36/____ = 9
4
Solve: (5² - 10) ÷ (2 + 3)
3
Which number is closest to 0?
-24, -1/6, 1/25, 3
1/25
Define: Reciprocal
"Flipping" a fraction.
Ex: 8 and 1/8
A scuba diver dives 24 feet below the water’s surface. The diver then rises 10 feet, stops, and then dives downward another 18 feet. How far, in feet, does the diver need to rise upward to reach the water’s surface?
14 feet
18 feet
24 feet
32 feet
32 feet
Find the product: (-9/5)(-2/12)
3/10
Solve: [12 - (4 + 2)] × (3² ÷ 3)
12
Teo is checking the temperatures in 5 different cities on a winter morning. Here are the temperatures in Celsius:
Toronto: -3.5 degrees
Denver: 2 degrees
Chicago: -1 degrees
Anchorage: -7.2 degrees
New York: 0.5 degrees
In what order should Teo list the cities, from coldest to warmest, based on their temperatures?
Anchorage, Toronto, Chicago, New York, Denver
Define: Commutative Property
Bonus +100: Which two operations does the commutative property work for?
When the order changes, the answer stays the same.
Bonus: Multiplication and addition