# Number pyramids

## Lesson details

### Key learning points

1. In this lesson, we will have the opportunity to make conjectures and generalise about number pyramids.

### Licence

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## Video

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## Worksheet

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## Starter quiz

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### 6 Questions

Q1.
Choose the option which would complete the blanks correctly: If I double the ___ times table I will have the ____ times table
10, 5
3, 5
Q2.
Choose the option which would complete the blank correctly: If I ________ the 6 times table I will have the 12 times table
Half
Triple
Q3.
Choose the option which would complete the blank correctly: If I triple the ___ times table I will have the 12 times table
2
3
Q4.
Choose the option which would complete the blank correctly: If I add the ___ and 5 times tables I will have the 7 times table
3
4
Q5.
Choose the option which would complete the blanks correctly: If I ____ the 4 and 9 times tables I will have the ___ times table
Subtract, 13
Q6.
Choose the option which would complete the blank correctly: If I subtract the ___ times table from the 12 times table I will have the 5 times table.
12
5

## Exit quiz

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### 5 Questions

Q1.
Which of the calculations below is equivalent to 8 x (9 + 10) ?
Correct answer: 8 x 9 + 10 x 8
9 x (8 + 10)
9 x 10 + 8 x 10
Q2.
Which of the calculations below is equivalent to 9 x 8 + 9 x 10 ?
8 x 9 + 10 x 8
Correct answer: 9 x (8 + 10)
9 x 10 + 8 x 10
Q3.
Which of the calculations below is equivalent to (8 + 9) x 10 ?
8 x 9 + 10 x 8
9 x (8 + 10)
Correct answer: 9 x 10 + 8 x 10
Q4.
3 x ( 11 + 4) = 3 x 11 + 3 x 4 shows what property?
Associativity
Commutativity