Multiplication, Division, Multiples of 10, Unknown Factor

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the process of adding a number to itself a certain number of times. It is often described as repeated addition.

Front

What is division?

Back

Division is a mathematical operation that represents the process of splitting a number into equal parts. It is the inverse operation of multiplication.

Front

What are multiples of 10?

Back

Multiples of 10 are numbers that can be expressed as 10 times an integer. Examples include 10, 20, 30, 40, etc.

Front

How do you find the unknown factor in a multiplication problem?

Back

To find the unknown factor in a multiplication problem, you can divide the product by the known factor.

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. This means that if you multiply two numbers, you can divide the product by one of the numbers to get the other number.

Front

How can repeated addition be used to represent multiplication?

Back

Repeated addition can be used to represent multiplication by adding a number to itself a certain number of times. For example, 3 x 4 can be represented as 4 + 4 + 4.

Front

What is an example of a repeated addition equation that does NOT represent equal groups?

Back

An example of a repeated addition equation that does not represent equal groups is 5 + 5 + 5 + 9, as the last term (9) does not fit the pattern.

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How do you calculate the total number of items in equal groups?

Back

To calculate the total number of items in equal groups, multiply the number of groups by the number of items in each group.

Front

What is the product of 3 and 7?

Back

The product of 3 and 7 is 21.

Front

If there are 7 classes with 20 students each, how do you find the total number of students?

Back

To find the total number of students, multiply the number of classes (7) by the number of students in each class (20). The total is 140.