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Lesson 1 of 15

Explain how to multiply a 3-digit number by a 2-digit number

I can explain how to multiply a 3-digit number by a 2-digit number.

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Lesson 1 of 15

New

Explain how to multiply a 3-digit number by a 2-digit number

I can explain how to multiply a 3-digit number by a 2-digit number.

Download all

These resources were made for remote use during the pandemic, not classroom teaching.

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Lesson details

Key learning points

Partition one of the factors.
Calculate the partial products.
Add the partial products to recombine.

Keywords

Partial product - Any of the multiplication results we get leading up to an overall multiplication result is a partial product.

Common misconception

Children lack fluency and recall in multiplication tables and therefore lose the thread of longer multiplication strategies.

Providing multiplication grids and / or adapting questions to focus on known multiplication tables can support learners to focus on the steps of an algorithm.

This lesson uses Olympics and similar large-scale sport events as contexts for multiplication of larger integers. If adapting contexts, consider real-life contexts in which pupils will encounter 3-digit numbers and have reason to multiply these.

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This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

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Prior knowledge starter quiz

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6 Questions

Q1.
Match the equation to its product.

Correct Answer:1.7 × 10 =,17

Correct Answer:12.7 × 10 =,127

127

Correct Answer:1.07 × 100 =,107

107

Correct Answer:1.77 × 100 =,177

177

Correct Answer:7.7 × 100 =,770

770

Q2.
What is $$7^2$$?

Correct answer: 49

Q3.
What is $$8^2$$?

Correct answer: 64

Q4.
Calculate the product using short multiplication 42 × 6 =

Correct Answer: 252

Q5.
Calculate the product short multiplication 223 × 5 =

Correct Answer: 1,115

Q6.
Sofia has £99 and Lucas has seven times this amount. How much money does Lucas have? £

Correct Answer: 693

Assessment exit quiz

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6 Questions

Q1.
Look at the grid model for 31 × 29 shown. 29 has been partitioned into …

2 and 9

20 and 90

Correct answer: 20 and 9

9 and 2

Q2.
Look at the part–part-whole model. The multiplication expression is:

45 × 9

45 × 90

45 × 91

Correct answer: 45 × 19

Q3.
Which of these part-part-whole models represents 315 × 12

Correct Answer: An image in a quiz

Q4.
Which of these part-part-whole models represents 55 × 13

Correct Answer: An image in a quiz

Explain how to multiply a 3-digit number by a 2-digit number

Explain how to multiply a 3-digit number by a 2-digit number

These resources were made for remote use during the pandemic, not classroom teaching.

Lesson slides