# MMS_7Math NS1

## Quiz by Jaclyn McAllister

Mathematics
North Carolina Standard Course of Study

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10 questions
• Q1
The high temperature on Monday was -2. On Tuesday, the high temperature was 30. Which integer represents the difference in high temperatures on these 2 days?
10
-38
-10
38
300s
• Q2
If two different numbers have a sum of zero, which statement is true?
The numbers are multiplicative inverses of each other.
One of the numbers is zero.
The numbers are opposites.
The numbers are equivalent.
300s
• Q3
What is the opposite of -5 ?
5
1/5
- 1/5
5
300s
• Q4
Which expression is equivalent to 0?
forty-two plus negative twelve minus twenty
negative four plus negative six plus two
twenty-one plus negative four minus seventeen
sixteen minus seven minus ten
300s
• Q5
At the beginning of the week, the temperature was 15°. During the week, it decreased by 20°. What was the temperature by the end of the week?
-5
35
5
-6
300s
• Q6
In which situation will the end result be valued at 0?
A potassium ion has 19 protons which each have a charge of +1. It has 18 electrons which each have a charge of -1. What is the overall charge of the potassium ion?
A stock price rises 12 cents on Monday and falls 4 cents each day on Tuesday, Wednesday, Thursday, and Friday. How much did the stock's value change this week?
A stock price falls 16 cents on Monday and rises 4 cents each day on Tuesday, Wednesday, Thursday, and Friday. How much did the stock's value change this week?
A chlorine ion has 17 protons which each have a charge of +1. It has 18 electrons which each have a charge of -1. What is the overall charge of the chlorine ion?
300s
• Q7
What is the value of -5 - (-3) ?
2
-8
-2
8
300s
• Q8
Which expression has the greatest value?
-5 + (-7)
5 - (-7)
5-7
-5 + 7
300s
• Q9
What is the difference between the record high temperature and the record low temperature for Raleigh, NC?
96
26
4
114
300s
• Q10
Melinda has \$62.55 in her checking account. She deposits \$17.83 on Monday. She spends \$14.67at dinner on Tuesday. What is the new balance of Melinda's checking account?
\$59.39
\$30.05
\$95.05
\$65.71
300s

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