Topic 3 Review

Where should the grouping symbols be inserted so that the expression has the target value

= 32

• (2 x 9) + 7

• 2 x (9 + 7)

Where should the grouping symbols be inserted so that the expression has the target value

= 6

• (1/3 x 21) - 3

• 1/3 x (21 - 3)

Where should the grouping symbols be inserted so that the expression has the target value

= 43

• (2.5 + 5) x 6 - 2

• 2.5 + (5 x 6) - 2

• 2.5 + 5 x (6 - 2)

Choose the correct number of terms in this problem:

2x + 8

• One

• Two

• Three

True or False:

The algebraic expression 4y - 3 has one coefficient.

• True

• False

Choose the two expressions which are equivalent to the given expression:

5(2x + 3)

• 10x + 15

• 5x + 15 + 5x

• 10x + 8

Choose the two expressions which are equivalent to the given expression:

4x - 8

• 2(2x - 6)

• 2(2x - 4)

• x - 8 + 3x

Choose the two expressions which are equivalent to the given expression:

12x - 16

• 9.6x - 16 + 2.4x

• 3(3x - 5)

• 4(3x - 4)

Choose the two expressions which are equivalent to the given expression:

2(6x + 1/2)

• 12x + 2

• 12x + 1

• 6x + 1/2 + 6x + 1/2

Choose the two expressions which are equivalent to the given expression:

8.5 + (2s + 0.5)

• (8.5 + 0.5) + 2s

• 9 + 2

• 2(4.5 + s)