Expressions, formulae and equations

Sofia has n counters and puts in 2 more. Write an expression for how many she has now.

1. An + 2
2. Bn − 2
3. C2n

Write a ÷ 2 as simply as possible.

1. Aa/2
2. B2a
3. Ca − 2

Ana is m years old. Her sister is 8 years younger. How old is her sister?

1. Am − 8
2. Bm + 8
3. Cm/8

A taxi charges £2 plus £2 for every mile. Write the cost of m miles.

1. A2 + 2m
2. B2m + 2
3. C4m

If y = 7, what is the value of 5y?

Sofia has y counters and takes out 5. Write an expression for how many are left.

1. Ay + 5
2. By − 5
3. C5 − y

Write b ÷ 2 as simply as possible.

1. A2b
2. Bb/2
3. Cb − 2

Ana is t years old. Her cousin is 5 times as old. How old is the cousin?

1. At + 5
2. B5t
3. Ct/5

If x = 4, what is the value of x + 2?

y3 is the correct way to write 3 × y.

A number b is multiplied by 7. Write this as simply as possible.

1. Ab7
2. Bb + 7
3. C7b

Ana is p years old. Her brother is 9 years older. How old is her brother?

1. Ap − 9
2. B9p
3. Cp + 9

Ana is x years old. Her baby brother is half her age. How old is he?

1. A2x
2. Bx − 2
3. Cx/2

If b = 3, what is the value of 4b?

Sofia has a counters and puts in 8 more. Write an expression for how many she has now.

1. Aa + 8
2. Ba − 8
3. C8a

Write p ÷ 2 as simply as possible.

1. Ap/2
2. B2p
3. Cp − 2

Ana is n years old. Her sister is 5 years younger. How old is her sister?

1. An − 5
2. Bn + 5
3. Cn/5

A taxi charges £3 plus £4 for every mile. Write the cost of m miles.

1. A3 + 4m
2. B3m + 4
3. C7m

If m = 4, what is the value of 2m?

Sofia has m counters and takes out 6. Write an expression for how many are left.

1. Am + 6
2. Bm − 6
3. C6 − m