Year 8 Algebraic Techniques Quiz 1

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5x – 7y + 3x + y =

1 point

2x – 6y

2x – 8y

8x – 6y

8x – 8y

Clear selection

2x – (-x) =

1 point

2x²

Clear selection

Which expression does NOT equal 2a?

1 point

a x a

2 x a

3a – a

a + a

Clear selection

Jack has $x and buys a $3 drink for each of his two friends. How much has he left?

1 point

$(x – 6)

$(x – 3)

$(x – 2)

$(6 – x)

Clear selection

1 point

6a + 2

a + 12

a + 2

Clear selection

The number of centimetres in x metres is equal to

1 point

10x

100x

x ÷ 10

x ÷ 100

Clear selection

John is y years old. In 7 years his age will be:

1 point

y – 7

y + 7

Clear selection

2¹² ÷ 2² =

1 point

1⁶

2⁶

1¹⁰

2¹⁰

Clear selection

5³

1 point

5 x 5 x 5

5 + 5 + 5

3 x 3 x 3 x 3 x 3

5 x 5 x 5 x 5 x 5

Clear selection

8 x 3⁰ =

1 point

Clear selection

1 point

x⁵

x⁸

x¹²

x²²

Clear selection

If a = -4 and b = 3 the a²b is

1 point

144

-24

-48

Clear selection

The correct factorisation of 2ab – a is

1 point

2a(b – 1)

2a(b – a)

a(2b – 1)

a(2b – a)

Clear selection

a⁶ x a² =

1 point

a¹²

a⁸

a⁴

a³

Clear selection

1 point

⅔

4½

Clear selection

When 8a – 4b – 7a + 3b is correctly simplified the answer is

1 point

a – b

a + 7b

a – 7b

a + b

Clear selection

1 point

–7

0.2

Clear selection

if c = 4 and d= 6 then 7c – 5d equals

1 point

-2

Clear selection

1 point

2a + b

2a + 3b

3ab

6a + b

Clear selection

When simplified 3a² - 2a + a² – 5a becomes

1 point

4a² + 10b

3a⁴ – 7a

4a² – 7a

4a² – 3a

Clear selection

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