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# The Number System Chapter Exam

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

### Page 1

#### Question 1 1. Why was zero an important addition to the Arabic numeral system?

#### Question 2 2. Convert 36,098,000 to scientific notation.

#### Question 3 3. Estimate 4.789 + 3.123 - 12.876.

#### Question 4 4. Estimate 489.06 to the nearest hundreds place.

#### Question 5 5. What is the most efficient base number for higher mathematics like algebra, geometry, and calculus?

### Page 2

####
Question 6
6.
Which digit is in the Units (or ones) place value?

7,542

#### Question 7 7. In a positional numeral system, how many values can the number 8 have?

####
Question 8
8.
Which digit is in the Hundred Thousands place value?

234,845

#### Question 9 9. How old is the concept of base ten in written form?

#### Question 10 10. Which of the following is a decimal number?

### Page 3

#### Question 11 11. For the number 845.918, what is in the tenths place?

#### Question 12 12. Which of the following is true when it comes to rounding numbers?

#### Question 13 13. Convert 1.763 x 10^2 to standard notation.

####
Question 14
14.
What place value is the 7 in this number?

78,256

#### Question 15 15. Consider the numbers 1/2 and 9. Which of the following statements is completely true regarding the most specific classification of these two numbers?

### Page 4

####
Question 16
16.
Which of the numbers in the following set are rational numbers?

500, -15, √2, 1/4, 0.5, -2.50, π

#### Question 17 17. Estimate the product of 6.8 x 2.081.

#### Question 18 18. Why did the Mesopotamians use a base sixty system of numbers?

#### Question 19 19. Bridget wants to buy one t-shirt for $18.79 and a pair of shoes for $24.79. About how much should she expect to pay?

#### Question 20 20. Which family of numbers begins with the numbers 0, 1, 2, 3, …?

### Page 5

#### Question 21 21. Estimate the product of 5.4 x 3.8.

#### Question 22 22. The number 1 falls into all of the following families EXCEPT which group?

#### Question 23 23. Which of these statements is FALSE regarding the number 0?

#### Question 24 24. Martha chips in $14.75 for food at a party. John chips in $18.25 for food at the same party. Using estimation, about how much money did they chip in together?

#### Question 25 25. Estimate 623 to closest tens place.

### Page 6

#### Question 26 26. For the number 1.14, what digit is in the hundredths place?

#### Question 27 27. For the number 456, which number is in the tens place?

#### Question 28 28. You want to purchase an item for $1.29. Round $1.29 to the nearest dollar, recalling that you need to have enough money to cover the expense.

####
Question 29
29.
What place value is the 6 in this number?

42,689

#### Question 30 30. Convert 8.06 x 10^-1 to standard notation.

#### The Number System Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!