Starter quiz
- The number 17 can be partitioned into 1 ten and ______ ones.
- '7' ✓
- The number 59 can be partitioned into ______ tens and 9 ones.
- '5' ✓
- The answer when two or more values are multiplied together is called a ______ .
- product ✓
- factor
- sum
- answer
-
- Look at the image. What is the name given to the numbers shown by the arrows?
- products
- sum
- factors ✓
-
- Select the array which shows 3 x 4
- Pic 1
- Pic 2 ✓
- Pic 3
- Look at the array. What does it represent?
- 8 x 3 ✓
- 7 x 3
- 3 x 7
- 3 x 9
-
Exit quiz
- Which array shows 3 × 18?
- pic 1 ✓
- pic 2
- pic 3
- pic 4
- Which grid represents the multiplication fact 25 × 4?
- pic 1
- pic 2 ✓
- pic 3
- Which multiplication is represented by this grid model?
- 23 × 7
- 207 × 3
- 27 × 3 ✓
- 7 × 203
-
- Match the question with the amount of regrouping.
- 21 × 3⇔no regrouping ✓
- 23 × 4⇔regrouping in ones ✓
- 63 × 2⇔regrouping in tens ✓
- Select the correct multiplication equation for the following word problem: Lucas is preparing party packs. He has 8 packets of 32 pens. How many pens does he have altogether?
- 32 + 8
- 32 × 8 ✓
- 8 + 32
- 8 × 30
-
- Lucas is preparing for a party, he needs a box of sweets which has more than 120 sweets but less than 160. Which box should he choose?
- 7 x 21 ✓
- 27 × 23
Worksheet
Loading worksheet ...
Presentation
Loading presentation ...
Lesson Details
Key learning points
- Partitioning allows us to multiply the tens and then the ones and recombine the products.
- The grid can represent the array.
- Multiply the ones and tens separately and recombine.
Common misconception
Pupils may not regroup correctly if they do not understand the place value of digits in a factor.
Encourage pupils to use the stem sentences / array to identify when they may need to regroup.
Keywords
Array - An array is the layout of items (such as objects, numbers, etc.) arranged in rows and/or columns.
Product - The result of two or more values multiplied together.
Regroup - The process of unitising and exchanging between place values is known as regrouping.
+