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Homework answers / question archive / Question 21 1 / 1 pts Evaluate the following expression: -18 – 5 = ?   Question 22 1 / 1 pts Evaluate the following expression: 18 – (-11) = ?   Question 23 1 / 1 pts Evaluate the following expression: -28 + (22) = ?   Question 24 0 / 1 pts Use rounding to estimate the solution to the problem

Question 21 1 / 1 pts Evaluate the following expression: -18 – 5 = ?   Question 22 1 / 1 pts Evaluate the following expression: 18 – (-11) = ?   Question 23 1 / 1 pts Evaluate the following expression: -28 + (22) = ?   Question 24 0 / 1 pts Use rounding to estimate the solution to the problem

Math

Question 21

1 / 1 pts

Evaluate the following expression:

-18 – 5 = ?

 

Question 22

1 / 1 pts

Evaluate the following expression:

18 – (-11) = ?

 

Question 23

1 / 1 pts

Evaluate the following expression:

-28 + (22) = ?

 

Question 24

0 / 1 pts

Use rounding to estimate the solution to the problem. (Use front end rounding as explained in the lesson under “Estimate the results of an arithmetic operation.”)

6.738 + 2.537 = ?

Be sure to give the estimated solution, not the exact solution.

 

Question 25

1 / 1 pts

Use rounding to estimate the solution to the problem. (Use front end rounding as explained in the lesson under “Estimate the results of an arithmetic operation.”)

232 + 244 = ?

Be sure to give the estimated solution, not the exact solution.

 

Question 26

1 / 1 pts

Evaluate the following expression:
32 = ?

 

Question 27

1 / 1 pts

Evaluate the following expression:
03 = ?

 

Question 28

1 / 1 pts

Evaluate the following expression:
91.5 × 39.3 = ?

 

Question 29

1 / 1 pts

Evaluate the following expression:
36 ÷ (–5) = ?
Round your answer to the nearest hundredth, if necessary.

Question 30

1 / 1 pts

Evaluate the following expression:
–45 ÷ 3 = ?
Round your answer to the nearest hundredth, if necessary.

 

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Question 21

1 / 1 pts

Evaluate the following expression:

-18 – 5 = ?

Correct!

Correct Answer

-23

 

Question 22

1 / 1 pts

Evaluate the following expression:

18 – (-11) = ?

Correct!

Correct Answer

29

 

Question 23

1 / 1 pts

Evaluate the following expression:

-28 + (22) = ?

Correct!

Correct Answer

-6

 

Question 24

0 / 1 pts

Use rounding to estimate the solution to the problem. (Use front end rounding as explained in the lesson under “Estimate the results of an arithmetic operation.”)

6.738 + 2.537 = ?

Be sure to give the estimated solution, not the exact solution.

You Answered

Correct Answer

10

 

For help on this topic, study the Estimate the Result of an Arithmetic OperationLinks to an external site. section of the W03 Math Lesson: Rounding and Decimals.

 

 

Question 25

1 / 1 pts

Use rounding to estimate the solution to the problem. (Use front end rounding as explained in the lesson under “Estimate the results of an arithmetic operation.”)

232 + 244 = ?

Be sure to give the estimated solution, not the exact solution.

Correct!

Correct Answer

400

 

Question 26

1 / 1 pts

Evaluate the following expression:
32 = ?

Correct!

Correct Answer

9

 

Question 27

1 / 1 pts

Evaluate the following expression:
03 = ?

Correct!

Correct Answer

0

 

Question 28

1 / 1 pts

Evaluate the following expression:
91.5 × 39.3 = ?

Correct!

Correct Answer

3,595.95

 

Question 29

1 / 1 pts

Evaluate the following expression:
36 ÷ (–5) = ?
Round your answer to the nearest hundredth, if necessary.

Correct!

Correct Answer

-7.2 margin of error +/- 0.005

 

Question 30

1 / 1 pts

Evaluate the following expression:
–45 ÷ 3 = ?
Round your answer to the nearest hundredth, if necessary.

Correct!

Correct Answer

-15 margin of error +/- 0.005

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