Unit 2 Review Quiz

Is the mass of a baby chick closer to 55 paperclips (grams) or 55 baseball bats (kilograms)?

• 55 paperclips

• 55 baseball bats

Answer explanation

A baby chick typically weighs around 40-50 grams, which is much closer to 55 paperclips (approximately 55 grams) than to 55 baseball bats (55 kilograms). Therefore, the correct choice is 55 paperclips.

Tags

TEKS.MATH.3.7E

Imagine you have a bag of apples. Would you measure the mass in grams or kilograms?

• Kilograms

• Grams

Answer explanation

You would measure the mass of a bag of apples in kilograms, as it is a more appropriate unit for larger quantities. Grams are typically used for smaller items or precise measurements.

Tags

TEKS.MATH.3.7E

TEKS.MATH.3.7D

Would you measure the mass of a pencil in grams or kilograms?

• Grams

• Kilograms

Answer explanation

The mass of a pencil is typically small, usually around 10-20 grams. Therefore, measuring it in grams is more appropriate than kilograms, which are used for heavier objects.

Tags

TEKS.MATH.3.7E

Which is closer to the volume of a paint bucket? 4 liters or 4 milliliters?

• 4 liters

• 4 milliliters

Answer explanation

4 liters is much closer to the volume of a typical paint bucket, which usually holds several liters of paint. In contrast, 4 milliliters is a very small amount, not suitable for a paint bucket.

Tags

TEKS.MATH.3.7E

TEKS.MATH.3.7D

How many raindrops or water bottles would fill a paint bucket?

• 1,000 raindrops or 10 water bottles

• 10,000 raindrops or 100 water bottles

• 100,000 raindrops or 1,000 water bottles

• 1,000,000 raindrops or 10,000 water bottles

Answer explanation

A standard paint bucket holds about 5 liters. Given that 1 water bottle is typically 0.5 liters, it takes 10 bottles to fill a bucket. Since 1,000 raindrops equal approximately 0.1 liters, it takes 100,000 raindrops to fill it.

Tags

TEKS.MATH.3.2A

What unit would you use to measure the volume of a spoonful of honey, milliliters or liters?

• Milliliters

• Liters

Answer explanation

Milliliters are the appropriate unit for measuring small volumes like a spoonful of honey, as they provide a more precise measurement than liters, which are better suited for larger quantities.

Tags

TEKS.MATH.3.7E

TEKS.MATH.3.7D

Round 345 to the nearest ten.

• 350

• 340

• 360

• 355

Answer explanation

To round 345 to the nearest ten, look at the digit in the ones place (5). Since it is 5 or greater, round up to the next ten, which is 350. Therefore, the correct answer is 350.

Tags

TEKS.MATH.3.4B

Estimate: 398 + 251 = ? Round numbers to the nearest 100 to estimate the sum.

• 650

• 600

• 700

• 500

Answer explanation

To estimate 398 + 251, round 398 to 400 and 251 to 300. Then, 400 + 300 = 700. However, rounding 398 down to 300 and 251 up to 400 gives 600. The closest estimate is 650, which is the correct choice.

Tags

TEKS.MATH.3.4B

What is the result of breaking apart 352 + 175?

• 527

• 500 + 27

• 300 + 52 + 100 + 75

• 300 + 100 + 50 + 20 + 7

Answer explanation

Breaking apart 352 + 175 gives us 300 + 100 + 50 + 20 + 7. This method shows the individual components of each number, making it clear how they combine to form the total.

Tags

TEKS.MATH.3.2A

Elijah is trying to add two large numbers in his head. Why might he break apart the numbers? Breaking apart numbers helps simplify addition by focusing on place values: hundreds, tens, and ones.

• To make numbers more complex

• To focus on place values

• To increase the number of digits

• To make subtraction easier

Answer explanation

Breaking apart numbers allows us to focus on place values, making addition simpler by clearly identifying hundreds, tens, and ones. This method enhances understanding and accuracy in calculations.

Tags

TEKS.MATH.3.2A

TEKS.MATH.3.4A