Unit 3 Lesson 18

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 3 x 4 means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Front

What does the term 'product' mean in multiplication?

Back

The product is the result of multiplying two or more numbers together. For example, in 5 x 6, the product is 30.

Front

How can you break apart a multiplication problem?

Back

You can break apart a multiplication problem by separating one of the factors into two smaller factors. For example, 8 x 9 can be broken into (8 x 5) + (8 x 4).

Front

What is an array in multiplication?

Back

An array is a visual representation of multiplication using rows and columns. For example, an array for 3 x 4 has 3 rows and 4 columns.

Front

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

Back

To find the total number of items in equal groups, multiply the number of groups by the number of items in each group. For example, 6 groups of 8 items is 6 x 8 = 48.

Front

What is a tape diagram?

Back

A tape diagram is a visual model that uses rectangles to represent numbers and their relationships in a problem, often used to solve word problems.

Front

How do you solve a word problem using multiplication?

Back

To solve a word problem using multiplication, identify the quantities involved, determine if they are in equal groups, and then multiply to find the total.

Front

What is the equation for finding how much more money is needed?

Back

To find how much more money is needed, subtract the amount already earned from the total amount needed. For example, if $150 is needed and $40 is earned, then $150 - $40 = $110.

Front

What does it mean to add quantities together?

Back

Adding quantities together means combining them to find a total. For example, if you have 108 marbles and add 48 more, you have 108 + 48 = 156 marbles.

Front

What is the importance of understanding factors in multiplication?

Back

Understanding factors helps in breaking down multiplication problems into simpler parts, making it easier to solve them.