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- 1. Multiple Choice
Tanya needs to write the number twenty-one and twelve thousandths as a decimal on her science lab report. How should she write this in standard form?
12.012
21.121
21.12
21.012
- 2. Multiple Choice
0.09 X 100 = 0.9
0.9 X 100 = 0.09
0.9 ÷ 10 = 0.09
0.09 ÷ 10 = 0.9
- 3. Multiple Choice
Write the missing power of 10 in each equation. Write your answers in the blanks.
0.06 × _____ = 6
- 4. Multiple Choice
Write the missing power of 10 in each equation. Write your answers in the blanks.
______× 0.3 = 300
- 5. Multiple Choice
Write the missing power of 10 in each equation. Write your answers in the blanks.
0.50 × _____= 5
- 6. Multiple Choice
Write the missing power of 10 in each equation. Write your answers in the blanks.
× 0.004 = 40
- 7. Multiple Choice
Decide if each expression represents the decimal 3.087.
Choose Yes or No for each expression.
three and eighty-seven hundredths
YES
NO
- 8. Multiple Choice
Decide if each expression represents the decimal 3.087.
Choose Yes or No for each expression.
0.08 + 3 + 0.007
YES
NO
- 9. Multiple Choice
Decide if each expression represents the decimal 3.087.
Choose Yes or No for each expression.
3 + 0.87
YES
NO
- 10. Multiple Choice
Decide if each expression represents the decimal 3.087.
Choose Yes or No for each expression.
YES
NO
- 11. Multiple Choice
Decide if each expression represents the decimal 3.087.
Choose Yes or No for each expression.
YES
NO
- 12. Multiple Choice
Duncan told his friend Binh that when you multiply any number by 102, you can just write two zeros after the last digit of the number. He gives the example 4 × 102 = 400 to prove that this is always true. Binh disagrees and says that the product 0.4 × 102 shows that Duncan’s rule is not always true.
Who is correct?
Duncan
Binh
Both
Neither
- 13. Multiple Choice
Complete the equations to show the relationships between the numbers.
Write your answers in the blanks.
6 = ________ × 10
6
0.6
0.06
0.006
- 14. Multiple Choice
Complete the equations to show the relationships between the numbers.
Write your answers in the blanks.
0.06 = ________ × 10
6
0.6
0.06
0.006
- 15. Multiple Choice
Complete the equations to show the relationships between the numbers.
Write your answers in the blanks.
0.6 = ________ × 10
6
0.6
0.06
0.006
- 16. Multiple Choice
Complete the equations to show the relationships between the numbers.
Write your answers in the blanks.
60 = ________ × 10
6
0.6
0.06
0.006
- 17. Multiple Choice
A golf ball has a mass of 0.04 kg and a football has a mass of 0.4 kg. How is the mass of the football related to the mass of the golf ball?
The mass of the golf ball is 100 times the mass of the football ball.
The mass of the football is 100 times the mass of the golf ball.
The mass of the golf ball is 10 times the mass of the football ball.
The mass of the football is 10 times the mass of the golf ball.
- 18. Multiple Choice
Nurses at a hospital weigh five newborn babies and round the weights to the nearest whole number. Which of the weights round to 8 pounds? Choose all the correct answers.
8.075 pounds
7.099 pounds
7.561 pounds
8.501 pounds
7.800 pounds
- 19. Fill in the Blank
A jeweler weighs some pieces of gold before making them into rings. She writes the following weights measured in ounces: 4.7, 4.898, 4.98, 4.39, 4.071.
How many ounces did the heaviest piece of gold weigh?
- 20. Multiple Choice
Mr. Kwan organizes his rock collection by mass. He thinks each rock is about 7.6 grams.
He rounds the masses to the nearest tenth.
Decide if each mass rounds to 7.6 grams.
Choose Yes or No for each mass.
7.613 grams
YES
NO
- 21. Multiple Choice
Mr. Kwan organizes his rock collection by mass. He thinks each rock is about 7.6 grams.
He rounds the masses to the nearest tenth.
Decide if each mass rounds to 7.6 grams.
Choose Yes or No for each mass.
7.539 grams
YES
NO
- 22. Multiple Choice
Mr. Kwan organizes his rock collection by mass. He thinks each rock is about 7.6 grams.
He rounds the masses to the nearest tenth.
Decide if each mass rounds to 7.6 grams.
Choose Yes or No for each mass.
7.49 grams
YES
NO
- 23. Multiple Choice
Mr. Kwan organizes his rock collection by mass. He thinks each rock is about 7.6 grams.
He rounds the masses to the nearest tenth.
Decide if each mass rounds to 7.6 grams.
Choose Yes or No for each mass.
7.612 grams
YES
NO
- 24. Multiple Choice
Mr. Kwan organizes his rock collection by mass. He thinks each rock is about 7.6 grams.
He rounds the masses to the nearest tenth.
Decide if each mass rounds to 7.6 grams.
Choose Yes or No for each mass.
7.57 grams
YES
NO
- 25. Multiple Choice
What is 100,000 written as a power of 10 in exponent form?
- 26. Multiple Choice
Choose >, =, or < to compare each pair of numbers.
3.5 □ 3.05
- 27. Multiple Choice
Choose >, =, or < to compare each pair of numbers.
21.17 □ 2.117
- 28. Multiple Choice
Choose >, =, or < to compare each pair of numbers.
0.429 □ 0.492
- 29. Multiple Choice
Choose >, =, or < to compare each pair of numbers.
0.08 □ 0.080
- 30. Multiple Choice
Choose >, =, or < to compare each pair of numbers.
55.06 □ 55.6
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