Use knowledge of the 2, 5 and 10 times tables to solve problems | Maths

Starter quiz

Which expression matches this array?

2 × 5 ✓

2 × 2

5 × 5

3 × 5
Look at the array and complete the sentence. There are ___ groups of 6 , this is the same as ______ × 6

'2' ✓
Which word completes the sentence? The order of the __________ can be changed and the product remains the same. This is known as commutativity.

products

factors ✓

fractions
Look at the arrays. Select the correct expressions that describe the groupings.

4 × 2 ✓

3 × 2

2 × 4 ✓

5 × 2

4 × 4
Look at the array to help you fill in the gap with the same number: ______ × 4 = 4 × ___

'5' ✓
Aisha and Laura have some coins. They each have 50 p altogether. If Aisha has one 50 pence coin and Laura has five of the same coin, what coins must Laura have? Laura will have 5 ______ pence coins.

'10' ✓

Exit quiz

2 × 3 = 6, the 2 represents the number of plates, the 3 represents __________. These are our factor pairs.

the number of plates

the number of sweets on each plate ✓

the total number of sweets
Look at the image below. Select the multiplication expression that represents the amount of sweets.

2 × 2

5 + 5

2 × 5 ✓

2 + 2

5 × 2 ✓
Select the correct ways to represent the image below.

2 × 6 ✓

2 + 2 + 2 + 2

6 × 6

2 + 2 + 2

6 × 2 ✓
Miss Coe has organised 3 plates of 2 cupcakes. Miss Miah has 2 plates. If they both have the same amount of cupcakes, how many cupcakes does Miss Miah have on each of her plates? ______ cupcakes.

'3' ✓
A local bakery packs pastries into 4 boxes of 5 pastries. If 5 boxes are used and the same amount of pastries are packed, how many pastries will be in each box? ______ pastries

'4' ✓
Aisha plays a bean bag game and throws 4 of her bean bags into the 10 point zone. How many bean bags would she need to score the same amount if all her bean bags were thrown into the 5 point zone?

'8' ✓

Worksheet

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Lesson Details

Key learning points

Numbers in the 10 times table are also in the 2 and 5 times tables.
Multiples of 2 are all even numbers.
Multiples of 10 all have a zero in the ones column.
Multiples of 5 all have a 5 or a 10 in the ones column.

Common misconception

Pupils may misunderstand the contexts or language within worded problems and therefore not understand the calculation required to solve.

Model clearly how to identify key phrases and words which will identify the operation and equation required for word problems. Pupils may benefit from representing what is known and what is unknown such as by drawing a bar model.

Keywords

Commutative - Multiplication is commutative. This means the order of the factors can be changed without changing the calculation or product.