Arrays and Equal Groups Quiz

A product is

• The answer to a division problem.

• The answer to a multiplication problem.

• The 2 numbers added together.

• The 2 numbers multiplied by each other.

Answer explanation

A product is defined as the result of multiplying two numbers together. Therefore, the correct answer is 'The answer to a multiplication problem.' Other options refer to different operations.

Tags

CCSS.3.OA.A.1

Multiplication is the same thing as

• subtraction

• array

• division

• repeated addition

Answer explanation

Multiplication can be understood as repeated addition. For example, 3 multiplied by 4 means adding 3 four times (3 + 3 + 3 + 3). This concept helps in grasping the relationship between multiplication and addition.

Tags

CCSS.3.OA.A.1

Groups need to be unequal to multiply.

• True

• False

Answer explanation

The statement is false because groups can be equal or unequal when multiplying. Multiplication is defined for any two groups, regardless of their sizes.

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Write a multiplication number sentence to represent the array below.

• 3 X 7 = 21

• 7 X 3 = 22

• 4 X 7 =28

Answer explanation

The array has 3 rows and 7 columns, which can be represented by the multiplication sentence 3 X 7. This equals 21, making the correct choice 3 X 7 = 21. The other options are incorrect.

Tags

CCSS.3.OA.A.1

What shows objects arranged in rows and columns?

• equal groups

• repeated addition

• arrays

• number line

Answer explanation

Arrays show objects arranged in rows and columns, making it easy to visualize and organize data. The other options do not specifically represent this arrangement.

Tags

CCSS.4.NBT.B.5

Which multiplication matches this array?

• 4 X 3 = 12

• 5 X 5 = 25

• 4 X 3 = 16

Answer explanation

The array represents 4 rows and 3 columns, which corresponds to the multiplication 4 X 3. Calculating this gives 12, making the correct choice 4 X 3 = 12. The other options are incorrect.

Tags

CCSS.3.OA.A.1

Write a multiplication sentence for the equal groups

• 2 x 3

• 3 + 3

• 2 + 3

Answer explanation

The question asks for a multiplication sentence for equal groups. The correct choice, 2 x 3, represents 2 groups of 3, which is a multiplication expression. The other options are addition, not multiplication.

Tags

CCSS.2.OA.C.3

Is the missing number a factor or a product? ___ x 6 = 12

• factor

• product

Answer explanation

In the equation ___ x 6 = 12, the missing number is a factor because it is multiplied by 6 to yield the product of 12. Therefore, the correct choice is 'factor'.

Tags

CCSS.3.OA.A.1

There are 5 tables in the lunchroom. If 4 people can sit at each table, how many total people can sit in the lunchroom?

• 25

• 16

• 20

• 14

Answer explanation

To find the total number of people that can sit in the lunchroom, multiply the number of tables by the number of people per table: 5 tables x 4 people/table = 20 people. Therefore, the correct answer is 20.

Tags

CCSS.3.OA.A.3

Rick was doing his math homework.

Rick wrote:

2 + 2 + 2 +2

Which is another way to show what Rick wrote?

• 2 x 2

• 5 x 2

• 2 + 4

• 4 x 2

Answer explanation

Rick's expression, 2 + 2 + 2 + 2, can be simplified to 4 x 2, since adding four 2's is the same as multiplying 4 by 2. The other options do not represent the same value.

Tags

CCSS.3.OA.A.1