Starter quiz
- 210 can be partitioned into __________.
- 2 tens and 2 tens
- 2 tens and 1 ten
- 2 hundreds and 0 ten
- 2 hundreds and 1 ten ✓
- 2 hundreds and 2 tens
-
- Lucas is chanting his 3 times tables: 3, 6, 9, ___. What comes next?
- 11
- 12 ✓
- 13
- 14
- 15
-
- The number 256 can be partitioned into 2 hundreds, __________ and 6 ones.
- 5 hundred
- 5 tens ✓
- 5 ones
-
- Use expanded multiplication to calculate this question: 32 × 2 = ______
- '64' ✓
- Calculate and sort the multiplication equations into ascending order.
- 1⇔45 × 0
- 2⇔43 × 1
- 3⇔41 × 2
- 4⇔42 × 2
- 5⇔44 × 2
- The product is a 2-digit number. 47, 1 and 2 are its factors. It is greater than 50. What product could it be?
- '94' ✓
Exit quiz
Look at the image. The arrow is pointing to the __________.- products
- factors
- partial products ✓
- recombined amount
-
- 12 tens can be regrouped as ______ hundred and 2 tens.
- '1' ✓
- The digits '3' and '6' in the number 365 represent:
- 3 tens and one 6
- 3 ones and 6 tens
- 3 hundreds and 6 ones
- 3 hundreds and 6 tens ✓
-
- Match each multiplication with the correct regrouping.
- 23 × 2⇔0 regroup ✓
- 24 × 3⇔Regrouping in 1s to 10s ✓
- 42 × 3⇔Regrouping in 10s to 100s ✓
Choose the correct partial products for this expanded method.- 6 + 42
- 6 + 420 ✓
- 6 + 402
- 402 + 60
-
- Aisha has 47 packets of sweets. Each packet has 8 sweets. How many sweets does she have altogether?
- '376' ✓
Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- If the product of the single digit and the tens number is greater than 100 then you regroup ten tens into one hundred.
- If the product of the single digit and the tens number is greater than 100 the partial product will be a 3-digit number.
- There are similarities between the representations of multiplication.
Common misconception
Pupils may not align or regroup correctly leading to an inaccurate calculation.
Model accurately what happens when we regroup from 10s to 100s. Why did this happen? How do we record this?
Keywords
Expanded multiplication - Expanded multiplication is a way of recording the steps focusing on partitioning one or more factors and showing partial products.
Regroup - The process of unitising and exchanging between place values is known as regrouping.
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