# Unit Quiz: Multiplication and division

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## Q1. 1 is not a prime number because...

### Options:

- It is an odd number
- It is too small
- It only has one factor which is itself
- It is a factor in every number.

### Correct Answer:

- It only has one factor which is itself

## Q2. Can you find the mystery number? It is less than 50, 6 and 12 are both factors of it and it is a multiple of 9.

### Options:

- 27
- 36
- 42
- 45

### Correct Answer:

- 36

## Q3. Lucy created four different alternating factor and multiple chains. Her partner, Yasin, has spotted a mistake in one of her chains - can you tell which one?

### Options:

- 32 - 4 - 12 - 5 - 20
- 12 - 2 - 18 - 9 - 27
- 30 - 15 - 45 - 9 - 18
- 48 - 8 - 24 - 4 - 12

### Correct Answer:

- 32 - 4 - 12 - 5 - 20

## Q4. Which of the facts can I derive from the representation below?

### Options:

- 2 x 40 = 80
- 20 x 4 = 80
- 80 ÷ 2 = 40
- All of the above
- None of the above

### Correct Answer:

- All of the above

## Q5. Which derived fact helps me to mentally solve 240 ÷ 5?

### Options:

- 48 x 10
- 120 ÷ 10
- 48 ÷ 10
- 120 x 10

### Correct Answer:

- 48 x 10

## Q6. Which estimation is correct for the calculation 192 ÷ 8?

### Options:

- 192 ÷ 10
- 190 ÷ 8
- 200 ÷ 8
- 200 ÷ 10

### Correct Answer:

- 200 ÷ 8

## Q7. Using your knowledge of inverse, which of the following numbers is not a factor of 248?

### Options:

- 2
- 4
- 6
- 8

### Correct Answer:

- 6

## Q8. 45 is a factor of 360 because.....

### Options:

- 45 x 6
- 45 x 8
- 45 x 9

### Correct Answer:

- 45 x 8

## Q9. Which statement below is false about the calculation 2536 ÷ 4 = 634

### Options:

- The divisor is 2536
- The quotient is 634
- The dividend is 2536
- The divisor is 4

### Correct Answer:

- The divisor is 2536

## Q10. In the image below, you can see the first 3 squared numbers. What would the 6th squared number be in the sequence?

### Options:

- 36
- 49
- 64
- 81

### Correct Answer:

- 49