Vocabulary
What are two numbers that are the same distance from 0 on a number line, but in opposites directions, called?
opposites
What is the rule for adding two numbers with the same signs? Different signs?
same signs=add the numbers and keep the sign
different signs=subtract the numbers and keep the sign of the bigger number
What is the rule for multiplying numbers with the same signs? For different signs?
same signs=positive answer
different signs=negative answer
Turn 7 1/8 into an improper fraction.
57/8
In the first round of a card game, Niki scored 30 points. Then, she lost 10 points on one turn and also lost 15 points on her final turn. What is her final score?
5 points
A decimal that ends is called a _____________ decimal.
terminating
Find the sum of -5 +(-2).
-7
Find the product of -3/5* (-1.5).
9/10
Turn 14/3 into an mixed number.
4 2/3
Alexis and Mariana are hiking. Alexis climbs to the top of a ridge 400 feet above sea level. Mariana goes to the bottom of a valley 40 feet below sea level. What is the vertical distance between Alexis and Mariana?
440 feet
What is a number that can be written as a fraction called?
rational number
Find the difference of 5-(-2).
7
Find the quotient of 90 -:(-9).
-10
Turn 0.7 into a fraction.
7/10
Andy is scuba diving. He starts at sea level and then descends 20 feet in 2 1/2 minutes. How far does he descend in 1 minute?
8 feet
What two types of decimals are considered rational numbers?
repeating decimals and terminating decimals
Find the difference of 20.25 - 9 1/2.
10.75 or 10 3/4
Find the quotient of -3/4-:(-8/12).
1 1/8
Turn 7/8 into a decimal.
0.875
A marathon is 26.2 miles long. There is a water station every 2 1/2 miles along the race route and one at the finish line. How many water stations are needed for this marathon?
11 water stations
What is it the name of a fraction that is flipped?
reciprocal
Find the sum of -4 1/2 + 3 1/4.
-1 1/4
Find the quotient of -10-:2 1/2.
-4
Turn 4 2/3 into a decimal.
4.66666.....
Javier had $300 in his bank account. His bank charges a fee of $10.50 each month that his balance is below $500. If he makes no other deposits or withdrawals, how much money is in Javier's account at the end of 3 months?
$268.50