Expressions Unit

Which shows the expression written with parentheses so that it simplifies to 3? 24 ÷ 6  ∙ 2 - 1 + 4

• 24 ÷ (6  ∙ 2) - 1 + 4

• 24 ÷ 6  ∙ (2 - 1) + 4
  

• 24 ÷ 6  ∙ 2 - (1 + 4)
  

• 24 ÷ 6  ∙ (2 - 1 + 4)
  

Which shows (2 + 8) ∙ 4 in words?

• the sum of 2 and 8 multiplied by 4

• the sum of 2 and the product of 8 and 4

• the sum of 2 and 8 and the product of 8 and 4

• the product of 2 and 8 and 4

which expression represents multiplying the difference of 12 and 3 by 4?

• 12 - (3 ∙ 4)

• (12 - 3) ∙ 4

• 12 + (3 ∙ 4)

• (12 + 3) ∙ 4

which expression represents dividing 6 by n and then subtracting 8?

• 8 - 6 ÷ n

• (8 - 6) ÷ n

• (6 ÷ n) - 8

• 6 ÷ (n - 8)

• 15

• 12

• 18

• 21

20 - 4 ∙ 3

• 6

• 8

• 45

• 48

25 - (12 - 4) ÷ 0.4

• 3

• 5

• 22.5

• 42.5

36 ÷ 6 + 3 ∙ 2

• 1

• 2

• 12

• 18

(3.3 + 0.7) ∙ (4 - 0.9)

• 15.1

• 12.4

• 7.1

• 5.2

20 - n ∙ 2 for n = 5

• 5

• 10

• 30

• 35