Multiply a Two-digit Number by a One-digit Number Using a Written Method

In this activity, we will be multiplying a two-digit number by a one-digit number using a written method.

 

Step 1: Multiply 3 and 3 to make 9.

 

 

Step 2: Multiply 3 and 20 to make 60. We can use the fact 3 x 2 = 6 to help with this.

 

 

Step 3: Add together the two products of 60 and 9.

 

 

Let's try an example question together. 

 

Example

 

 

Answer

We are trying to work out 13 lots of 4.

 

Step 1: 4 x 3 = 12

Steps 2: 4 x 10 = 40

Step 3: 40 + 12 = 52

 

So, 13 × 4 =  52

 

Now you've seen the method to use, it's your turn to try some questions.