Question 1

The temperature was 2 degrees at the beginning of the month and then dropped 8 degrees in the end of the month. What signed number represents the change in temperature that month?

Accepted Answer

The change in temperature is calculated by subtracting the ending temperature from the beginning temperature. So the change in temperature is 2 - (-8) = 10, which is a decrease of 10 degrees. Since the temperature decreased, the sign of the answer is negative. Therefore, the best choice is B, -6, which represents the decrease of 10 degrees with a negative sign.

Question 2

Use a calculator to subtract.

Accepted Answer

The answer of Use a calculator to subtract. 
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Question 3

Multiply without using pencil and paper or a calculator.

Accepted Answer

The answer of Multiply without using pencil and paper or...

Question 4

Use a calculator to perform the operation.

Accepted Answer

This question is most likely a red herring, as entering the given string of numbers and letters into a calculator will not result in any meaningful operation. Therefore, the answer is based on guessing which of the options seems most likely to be correct. In this case, D (1.98565) is the closest to the other options, which are all around 2.

Question 5

Mark deposited $470 in a new VISA account, then he had a dinner with his business partners and spent $83, and after that, he deposited another $219. Find the balance in Mark's account.

Accepted Answer

Mark's final balance is calculated by adding his deposits and subtracting his spending: $470 - $83 + $219 = $606.

Question 6

Daniel has to spend $650 on school books in the next semester. He also owes $1200 in tuition. If he is awarded a scholarship that will pay $550 of the bill, how much will he still have to spend on school?

Accepted Answer

Daniel has to spend $650 on school books and owes $1200 in tuition, for a total of $1850. However, he is awarded a scholarship that will pay $550, so he will only have to pay $1850 - $550 = $1300. Therefore, the correct answer is B.

Question 7

Add the following numbers.

Accepted Answer

The answer of Add the following numbers. 
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Question 8

Divide.

Accepted Answer

The answer of Divide. 
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Question 9

Multiply.

Accepted Answer

The answer of Multiply. 
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Question 10

Use a calculator to evaluate the expression.

Accepted Answer

The answer of Use a calculator to evaluate the expression....

Question 11

To the nearest tenth, find the circumference and the area of the target.  a = 8 in.

Accepted Answer

The answer of To the nearest tenth, find the circumference...

Question 12

Subtract.

Accepted Answer

Subtracting each digit individually, we get:
7-2 = 5
c-1 = b
8-5 = 3
5-d = 8
1-4 (with borrowing from the previous column) = -3
e-7 (with borrowing from the previous column) = 5
1-6 (with borrowing from the previous column) = -5
1-8 (with borrowing from the previous column) = -7
1-6 (with borrowing from the previous column) = -5
1-7 (with borrowing from the previous column) = -6
1-2 (with borrowing from the previous column) = -1

Thus, the result is -957.

Question 13

Multiply and reduce your answer to lowest terms.

Accepted Answer

The answer of Multiply and reduce your answer to lowest...

Question 14

Perform the addition. Simplify the result when possible.

Accepted Answer

To add two hexadecimal numbers, we can simply add the digits in each corresponding place value, just like adding in base 10. If the sum of the digits is greater than or equal to 16, we need to "carry over" the extra 1 to the next place value.

Starting with the rightmost digits: 
8 + 2 = A (no carry over needed)
E + 5 = 13, carry over the 1
4 + A + 1 = F (no carry over needed)
5 + B = 10, carry over the 1
1 + 8 = 9 (no carry over needed)
1 + 2 = 3 (no carry over needed)
1 + C = D (no carry over needed)
1 + 7 = 8 (no carry over needed)
So the sum is 11ec187c_74e1_825a_b8be_1570ed6d55e8.

Question 15

Subtract.

Accepted Answer

The answer of Subtract. 
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Question 16

Add.

Accepted Answer

The answer of Add. ...

Question 17

Add.

Accepted Answer

The answer of Add. 
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Question 18

Add.

Accepted Answer

The answer of Add. 
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Question 19

Find the sum.

Accepted Answer

The answer of Find the sum. 
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Question 20

Add.

Accepted Answer

The answer of Add. ...

Quiz 1: Real Numbers and Their Basic Properties

The temperature was 2 degrees at the beginning of the month and then dropped 8 degrees in the end of the month. What signed number represents the change in temperature that month?

Use a calculator to subtract.

Multiply without using pencil and paper or a calculator.

Use a calculator to perform the operation.

Mark deposited $470 in a new VISA account, then he had a dinner with his business partners and spent $83, and after that, he deposited another $219. Find the balance in Mark's account.

Daniel has to spend $650 on school books in the next semester. He also owes $1200 in tuition. If he is awarded a scholarship that will pay $550 of the bill, how much will he still have to spend on school?

Add the following numbers.

Divide.

Multiply.

Use a calculator to evaluate the expression.

To the nearest tenth, find the circumference and the area of the target. a = 8 in.

Subtract.

Multiply and reduce your answer to lowest terms.

Perform the addition. Simplify the result when possible.

Subtract.

Add.

Add.

Add.

Find the sum.

Add.