Math Review 2

Front

What is a related fact in multiplication?

Back

A related fact in multiplication is a number sentence that shows the relationship between multiplication and division. For example, if 5 × 3 = 15, then 15 ÷ 3 = 5.

Front

How do you find the total time for a round trip?

Back

To find the total time for a round trip, you add the time taken for each leg of the trip. For example, if a boat ride takes 49 minutes each way, the total time is 49 + 49 = 98 minutes.

Front

What equation can be used to check the answer of a division problem?

Back

To check a division problem, you can use multiplication. For example, if you solved 40 ÷ 8 = 5, you can check it by using 8 × 5 = 40.

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the total of adding a number to itself a certain number of times. For example, 3 × 4 means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Front

What is division?

Back

Division is a mathematical operation that splits a number into equal parts. For example, 12 ÷ 4 means splitting 12 into 4 equal parts, which equals 3.

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. This means that if you know one, you can find the other. For example, if 4 × 5 = 20, then 20 ÷ 5 = 4.

Front

What does it mean to check your work in math?

Back

Checking your work means verifying that your answer is correct by using a different method or operation. For example, if you solved a problem using division, you can check it using multiplication.

Front

What is a number sentence?

Back

A number sentence is a mathematical statement that shows a relationship between numbers using operations like addition, subtraction, multiplication, or division.

Front

How do you solve a multiplication problem?

Back

To solve a multiplication problem, you can use repeated addition, arrays, or skip counting. For example, to solve 3 × 4, you can add 3 four times: 3 + 3 + 3 + 3 = 12.

Front

What is the purpose of using equations in math?

Back

Equations are used in math to represent relationships between numbers and to solve problems. They help us understand how different quantities are related.