Modelling and Writing Expressions

What is the sum of 14 and x?

• x - 14
• 14(x)
• 14 + x
• 14/x

Which expression means '16 divided by a number'?

• n ÷ 6

• 6 ÷ n

• n ÷ 16

• 16 ÷ n

What is a number decreased by seventeen?

• n + 17
• n - 17
• 17 + n
• 17 - n

What is 5 less than 6 multiplied by s?

• 6s - 5

• 5 - 6s

• 5 + 6 - s

• 6 - s -5

'h times 2 and then increased by 5'

• 2 + h + 5

• h ∙ h + 5

• 5 ∙ h ∙ 2

• 2h + 5

the product of y and 7

• y x 7
• y ∙ 7
• y + 7
• y ÷ 7

u decreased by 17

• 17 - u
• u - 17
• u + 17
• u ÷ 17

half of a number, c

• c ÷ 2
• ½ ÷ c
• c ÷ ½ 
• c + ½

Which expression means:
15 miles less than Debbie

• d + 15
• d - 15
• 15 - d
• 15 + d

Which expression represents two unknown numbers added together

• a + b

• a - b

• ab