125

1/10

49

1/10

406

1/10

13

## Difficulty Rating

1/10

#### Question 5

6 & 8

1. Think about numbers that multiply to give 48. Thats going to be starting with low numbers, 2 * 24, 3 * 16, 4* 12, 6 * 8 etc
2. Answer is 6 * 8 as these numbers when added give 14 and multiplied, give 48

3/10

8264

2468

## Difficulty Rating

3/10

#### Question 7

5

1. Use BIDMAS. So Brackets, Indices, Division, Multiplication, Addition & Subtraction
2. In that order
3. First we do Multiplication. So 5 x 2 = 10
4. Revised question becomes 21-10+6
6. Then subtraction

## Difficulty Rating

3/10

#### Question 8

-16 & +4

1. Six less than -10 is working backwards on the number line. So -16
2. Twelve more than -8 = -8+12 = +4

## Difficulty Rating

3/10

#### Question 9

1. Since Catherine’s age is a Prime Number, she must be 7 and Alison 12
2. So Bethany must be 6

3/10

5/10

4/10

4/10

5/10

7/10

## Difficulty Rating

6/10

#### Question 16

15

1. Work backwards.
2. 38 – 17 = 21
3. 21 * 3 = 63
4. 63 + 12 = 75
5. 75/5 = 15

## Difficulty Rating

4/10

#### Question 17

1. Division question with a small twist
2. See notes above….Need bus for the remainder of people as well so answer is 20 not 19

5/10

7/10

## Difficulty Rating

6/10

#### Question 20

a. 10 seconds

If turn is 360 degrees every 40 seconds, 90 degrees as a right angle would take 1/4 of 40 = 10 seconds

b. 84 turns

In 56 minutes, the sails make 56/1 * 60/40 turns

Again, use of fractions to calculate these types of questions

7/10

5/10

## Difficulty Rating

8/10

#### Question 23

7,11 & 39

1. The multiples of 13 are 13,26,39,42,55
2. The different factors of 77 are 1,11 and 7
3. Answer is 7,11 & 39 = 57

7/10

7/10

7/10

9/10

5/10

6/10

6/10