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Operations With Rational Numbers Flashcards | StudBud
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Operations With Rational Numbers
Operations With Rational Numbers
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Answers
1
The fraction \frac{1}{9} is a repeating decimal.
False
True
2
Solve: \frac{2}{5}+\left(-\frac{1}{2}\right)
\frac{1}{2}
\frac{9}{10}
-\frac{1}{10}
-\frac{3}{7}
3
Solve: 7.2-\left(-2.8\right)
10
-4.4
4.4
-10
4
When adding rational numbers, if the signs are different....
Add and keep the sign
Subtract and keep the sign of the greater absolute value
Subtract and keep the sign
Add and keep the sign of the greater absolute value
5
Solve: -4\left(5\right)\left(-2\right)
40
-40
6
In Boston the morning temperature was -6°F. By 11:00 am it had increased by 10°F. What was the temperature at 11:00 am?
4\degree F
10\degree F
6\degree F
-16\degree F
7
Solve: -8+\left(-2\right)-5
1
-11
5
-15
8
Which equation represents losing $25 a day in the stock market for 6 days in a row?
-6\times25=150
25\times-6=-150
-25\times6=-150
-25\times-6=150
9
A bank account has a balance of -$15.25. If $14.50 is deposited into the account, what will be the new account balance?
-$0.25
$29.75
-$0.75
$0.50
10
Solve: \frac{-48}{-8}
-7
6
-6
7
11
If a bird is flying 24 feet above the water and a fish is 18 feet below the water, what is the distance between the two?
42
-42
-6
6
12
During a football game, the Bulldogs gained 8 yards, lost 9 yards, and gained 12 yards. What is the total yardage?
-5
-29
11
13
13
If the temperature in Alaska is-32\degree F, how would the temperature need to change in order to be 0\degree F?
Drop 32\degree F
Rise38\degree F
Rise32\degree F
Drop38\degree F
14
The rules for multiplication are the same for division
True
False
15
Which of the following fractions repeats when converted to a decimal?
\frac{4}{5}
\frac{1}{4}
\frac{2}{3}
\frac{3}{4}
16
When dividing, if the signs are different then the answer will always be positive.
True
False
17
A subtraction problem can be changed to addition by using "keep, change, change", also known as.....
Dividing by the inverse
Adding the opposite
Multiplying by the reciprocal
Subtracting the negative
18
A submarine is 72 feet below sea level. It dives down another 96 feet. What is the submarine's new position?
-24
158
26
-168
