Using Dienes to multiply a 2 digit number by a 1 digit number

In this lesson, we will learn to multiply 2 digit numbers by 1 digit numbers using Dienes blocks. We will use visual representations to make multiplication processes clearer, and we will investigate when to regroup quantities when using Dienes blocks.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Which is an example of partitioning?

1/6

Q2.Partitioning makes multiplying two digit numbers easier.

2/6

Q3.13 x 5 =

3/6

Q4.17 x 3 =

4/6

Q5.18 x 4 =

5/6

Q6.Use what you know about place value to work out 180 x 4 =

6/6

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Which is an example of partitioning?

1/6

Q2.Partitioning makes multiplying two digit numbers easier.

2/6

Q3.13 x 5 =

3/6

Q4.17 x 3 =

4/6

Q5.18 x 4 =

5/6

Q6.Use what you know about place value to work out 180 x 4 =

6/6

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Using Dienes to Multiply a 2 Digit Number by a 1 Digit Number Quiz

Take the quiz to test your new knowledge!

Q1.What is 22 x 4?

1/5

Q2.What is the missing word? If there are ten or more ones, we must ______________ the ones into tens and ones.

2/5

Q3.Do you need to regroup ones into tens when calculating 11 x 7?

3/5

Q4.Do you need to regroup tens when calculating 43 x 4?

4/5

Q5.What do you need to regroup when calculating 45 x 5?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Using Dienes to Multiply a 2 Digit Number by a 1 Digit Number Quiz

Take the quiz to test your new knowledge!

Q1.What is 22 x 4?

1/5

Q2.What is the missing word? If there are ten or more ones, we must ______________ the ones into tens and ones.

2/5

Q3.Do you need to regroup ones into tens when calculating 11 x 7?

3/5

Q4.Do you need to regroup tens when calculating 43 x 4?

4/5

Q5.What do you need to regroup when calculating 45 x 5?

5/5

Lesson summary: Using Dienes to multiply a 2 digit number by a 1 digit number

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