Topic 3 Vocabulary Quiz

What does it mean to underestimate?

• To guess that something is worth more or greater than it really is.

• To guess that something is worth less or smaller than it really is.

• To guess that something is exactly what it is.

• To guess that something is worth the same as it really is.

Answer explanation

To underestimate means to guess that something is worth less or smaller than it really is. This choice accurately reflects the definition, as it implies a failure to recognize the true value or size.

Tags

CCSS.RL.11-12.6

Which quote best represents an example of underestimating?

• Wow! We ordered way too much popcorn for the party, bruh.

• Oops, I didn't realize it was going to cost more than I planned for…

• We have exactly the right amount of supplies.

• We ordered just enough food for everyone.

Answer explanation

The quote 'Oops, I didn't realize it was going to cost more than I planned for…' reflects underestimating because it shows a lack of awareness about the actual costs involved, indicating a miscalculation.

Tags

CCSS.RL.11-12.6

What does it mean to overestimate?

• To guess that something is worth less or smaller than it really is.

• To guess that something is worth more or greater than it really is.

• To guess that something is exactly what it is.

• To guess that something is worth the same as it really is.

Answer explanation

To overestimate means to guess that something is worth more or greater than it really is. This is the opposite of underestimating, where one would guess a lower value.

Tags

CCSS.L.3.4B

CCSS.L.3.4C

CCSS.RF.3.3B

CCSS.RF.4.3A

CCSS.RF.5.3A

Which quote best represents an example of overestimating?

• Oops, I didn't realize it was going to cost more than I planned for…

• We have exactly the right amount of supplies.

• Wow! We ordered way too much popcorn for the party, bruh.

• We ordered just enough food for everyone.

Answer explanation

The quote "Wow! We ordered way too much popcorn for the party, bruh." illustrates overestimating because it indicates an excess of supplies beyond what was necessary, highlighting a miscalculation in planning.

Tags

CCSS.RL.11-12.6

What is a variable in mathematics?

• A letter that represents a number in an expression or an equation

• A number that never changes

• A fixed value

• A symbol that always represents zero

Answer explanation

A variable in mathematics is represented by a letter that can stand for different numbers in expressions or equations, making it a fundamental concept for algebraic manipulation.

Tags

CCSS.6.EE.A.2B

Which of the following best describes multiplication?

• Repeated addition when the answer gets bigger

• Repeated subtraction when the answer gets smaller

• Dividing a number into equal parts

• Adding a number to itself once

Answer explanation

Multiplication is best described as repeated addition, where you add a number to itself multiple times, resulting in a larger answer. This aligns with the correct choice, emphasizing the growth of the result.

Tags

CCSS.3.OA.A.1

Why can multiplication be easier than addition?

• Because it is repeated addition

• Because it involves subtraction

• Because it uses smaller numbers

• Because it is always done with zero

Answer explanation

Multiplication is often easier than addition because it can be thought of as repeated addition. For example, 4 multiplied by 3 means adding 4 three times (4 + 4 + 4), which simplifies calculations.

Tags

CCSS.3.OA.A.1

What is the result you get after multiplying numbers together called?

• Sum

• Difference

• Product

• Quotient

Answer explanation

The result of multiplying numbers together is called the 'product'. In contrast, 'sum' refers to addition, 'difference' to subtraction, and 'quotient' to division. Therefore, the correct answer is 'Product'.

Tags

CCSS.3.OA.A.1

What is the product to the multiplication problem 9 x 8?

• 63

• 72

• 81

• 64

Answer explanation

To find the product of 9 x 8, multiply the two numbers. 9 times 8 equals 72, which is the correct answer. The other options (63, 81, 64) are incorrect.

Tags

CCSS.3.OA.C.7

When 10 is multiplied a certain number of times, the product can be expressed using what?

• Fractions

• Decimals

• Exponents

• Percentages

Answer explanation

When 10 is multiplied a certain number of times, it can be expressed as 10 raised to a power, which is represented using exponents. For example, multiplying 10 three times can be written as 10^3.

Tags

CCSS.6.EE.A.1