Starter quiz
- Match the equation to its product.
- 1.7 × 10 =⇔17 ✓
- 12.7 × 10 =⇔127 ✓
- 1.07 × 100 =⇔107 ✓
- 1.77 × 100 =⇔177 ✓
- 7.7 × 100 =⇔770 ✓
- What is ?
- 36
- 14
- 9
- 49 ✓
- 56
-
- What is ?
- 4
- 9
- 16
- 49
- 64 ✓
-
- Calculate the product using short multiplication 42 × 6 = ______
- '252' ✓
- Calculate the product short multiplication 223 × 5 = ______
- '1,115' ✓
- Sofia has £99 and Lucas has seven times this amount. How much money does Lucas have? £______
- '693' ✓
Exit quiz
Look at the grid model for 31 × 29 shown. 29 has been partitioned into …- 2 and 9
- 20 and 90
- 20 and 9 ✓
- 9 and 2
-
Look at the part–part-whole model. The multiplication expression is:- 45 × 9
- 45 × 90
- 45 × 91
- 45 × 19 ✓
-
- Which of these part-part-whole models represents 315 × 12
- Which of these part-part-whole models represents 55 × 13
- Calculate 45 × 32 = ______ Use a grid model to show your thinking.
- '1,440' ✓
- Calculate 145 × 33 = ______ Use a grid model to show your thinking.
- '4,785' ✓
Worksheet
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Presentation
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Lesson Details
Key learning points
- Partition one of the factors.
- Calculate the partial products.
- Add the partial products to recombine.
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.
Keywords
Partial product - Any of the multiplication results we get leading up to an overall multiplication result is a partial product.
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