# Lesson Video: 10 Times Table

In this video, we will learn how to multiply numbers by 10 using objects or arrays to help us understand how multiplication by 10 works.

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### Video Transcript

10 Times Table

In this video, we will learn how to multiply objects by 10 using objects or arrays to help us understand how multiplying by 10 works. One times 10 is 10. This is the same as saying one group of 10. Two times 10 is 20, or two groups of 10 makes 20. Three times 10 is 30. Four tens are 40. Five tens are 50. Six tens are 60. Seven tens are 70. Eight tens are 80. Nine tens are 90. And 10 multiplied by 10 is 100.

Let’s look at some example questions which help us to practice multiplying by 10.

In this question, Daniel bought three boxes of pencils. Each box has 10 pencils. How many pencils does Daniel have in total? The question tells us that Daniel has three boxes of 10 pencils. So to find out how many he has in total, we need to multiply three by 10. We can use three 10 rods to represent the pencils. Now we can count in tens: 10, 20, 30. Daniel has 30 pencils all together because three times 10 is 30.

In this example, the question tells us a boy has seven boxes of fish and a girl has one box of fish. Each box has 10 fish. How many fish do they have altogether? So we know that the boy has seven boxes and the girl has one box. Altogether, that makes eight boxes. The question also tells us that each box has 10 fish. So to find out how many fish they have altogether, we need to multiply eight by 10. One way we can do this is to use the boxes to help us count in tens. Let’s count in tens: 10, 20, 30, 40, 50, 60, 70, 80. Eight multiplied by 10 is 80.

In this video, we’ve learned how to multiply by 10 using objects or arrays to help us solve problems.