Multiply a 2-digit number by a 1-digit number using partitioning and representations (two regroups) | Maths

Starter quiz

Lucas is chanting his 3 times tables: 3, 6, 9, ______ What comes next?

10

11

12 ✓

13
Which grid model represents the multiplication equation 35 × 3?

pic 1

pic 2 ✓

pic 3
Which multiplication is represented by the grid model?

107 × 4

104 × 7

17 × 4 ✓

7 × 4
Aisha is working out 23 × 4. Fill in the gap shown in the grid model.

'8' ✓
You are calculating 23 × 4. How many ones will you have altogether?

'12' ✓
Look at the grid model. What is the product of 23 × 4?

'92' ✓

Which grid shows 46 × 4

pic 1

picture 2 ✓

picture 3
What is the multiplication shown in this grid model?

6 × 502

6 × 50

502 × 6

6 × 52 ✓
Aisha begins to represent 52 x 5 using grid model. What number is missing?

'25' ✓
Aisha represents 52 x 5 using grid model. What number is missing?

'10' ✓
Match the multiplication with the instances of regrouping.

35 × 2

⇔

Regrouping in ones and tens ✓

43 × 2

⇔

Regrouping in tens ✓

14 × 3

⇔

Regrouping in ones ✓
Look at the grid model. What is the product?

'260' ✓

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Place value resources can be used to represent multiplication of a 2-digit by a 1-digit number.
Regroup from the ones to the tens if the product of the tens is greater than 10
Regroup from the tens to the hundreds if the product of the tens is greater than 100

Pupils may not regroup correctly.

Encourage pupils to use the stem sentences / array to identify when they may need to regroup.