Multiply a 2-digit number by a 1-digit number using short multiplication (no regroups)

Maths

In this unit pupils will multiply a 2-digit number by a single-digit number using partitioning and representations using expanded multiplication and using short multiplication. In the future unit pupils will multiply a 3-digit number by a single-digit number using expanded and short multiplication.

In the prior unit pupils explained the relationship between multiplying and dividing a number by 10 and multiples of 10. In this unit pupils will multiply a 2-digit number by a single-digit number using partitioning and representations using expanded multiplication and using short multiplication.

Multiplication by partitioning leading to short multiplication (2 by 1-digit)

Look at the image. The arrows are pointing to {{  }} .

The multiplication is: 41 × 2 Which short multiplication shows this correctly?

Use short multiplication to calculate the answer to: 34 × 2

Use short multiplication to calculate the answer to: 31 × 3

Select the correct short multiplication method for this representation.

Numbers from this calculation have rubbed off.  What could the missing number be?

When multiplying a 2-digit by a 1-digit number using expanded multiplication we usually place the __________ factor at the top.

Jacob is chanting his 6 times tables: 6, 12, 18, {{ }} What comes next?

Izzy is chanting her 8 times tables: 8, 16, 24, {{ }} What comes next?

Which is the correct arrangement for: 80 × 5 

Find the missing partial product from the layout shown.

Look at the expanded multiplication layout. What is the missing factor?

This lesson will soon be taken down.

Multiply a 2-digit number by a 1-digit number using short multiplication (no regroups)

Lesson outcome