Quiz about Mid-Unit 2 Review

Question 1

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?

Accepted Answer

21.012

Answer

12.012

Answer

21.121

Answer

21.12

Question 2

Decide if each expression represents the decimal 3.087.

Choose Yes or No for each expression.

three and eighty-seven hundredths

Accepted Answer

NO

Answer

YES

Question 3

Decide if each expression represents the decimal 3.087.

Choose Yes or No for each expression.

0.08 + 3 + 0.007

Accepted Answer

YES

Answer

NO

Question 4

Decide if each expression represents the decimal 3.087.

Choose Yes or No for each expression.

3 + 0.87

Accepted Answer

NO

Answer

YES

Question 5

Decide if each expression represents the decimal 3.087.

Choose Yes or No for each expression.

Accepted Answer

YES

Answer

NO

Question 6

Decide if each expression represents the decimal 3.087.

Choose Yes or No for each expression.

Accepted Answer

YES

Answer

NO

Question 7

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?

Accepted Answer

The mass of the football is 10 times the mass of the golf ball.

Answer

The mass of the golf ball is 100 times the mass of the football ball.

Answer

The mass of the football is 100 times the mass of the golf ball.

Answer

The mass of the golf ball is 10 times the mass of the football ball.

Question 8

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.

Accepted Answer

8.075 pounds

Accepted Answer

7.561 pounds

Accepted Answer

7.800 pounds

Answer

7.099 pounds

Answer

8.501 pounds

Question 9

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

Accepted Answer

YES

Answer

NO

Question 10

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

Accepted Answer

NO

Answer

YES

Question 11

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

Accepted Answer

NO

Answer

YES

Question 12

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

Accepted Answer

YES

Answer

NO

Question 13

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

Accepted Answer

YES

Answer

NO

Question 14

What is 100,000 written as a power of 10 in exponent form?

Accepted Answer

$$10^5$$

Answer

$$10^3$$

Answer

$$10^4$$

Answer

$$10^6$$

Mid-Unit 2 Review

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