Question 1

An expression is given.

$\enspace 3 × ( 8  + 2 ) ÷ 2 $

Which statement is true about the parentheses in this expression?

Accepted Answer

The parentheses indicate that $8 + 2$ should be solved first.

Answer

The parentheses indicate that $8+ 2$  should be solved last.

Answer

The parentheses indicate that $2÷ 2$ should be solved last.

Answer

The parentheses indicate that $3× 8$  should be solved first.

Question 2

Simplify this expression:

$\enspace  2(5 + 4g)$
$\,$

Accepted Answer

$10 + 8g$

Answer

$15 + 8g$

Answer

$10 + 4g$

Answer

$15 + 4g$

Question 3

Where should the brackets go in this number sentence?

$\enspace  5 + 3 	imes  6 = 23$
$\,$

Accepted Answer

$5 + (3 	imes 6) = 23$

Answer

$5 + 3 	imes (6 = 23)$

Answer

$(5 + 3 	imes 6) = 23$

Answer

(5 + 3) 	imes 6 = 23$

Question 4

Where should the brackets go in this expression?

$\enspace  4 	imes 7 + 3 = 31$
$\,$

Accepted Answer

$(4 	imes 7) + 3 = 31$

Answer

$4 	imes (7 + 3) = 31$

Answer

$(4 	imes 7 + 3) = 31$

Answer

$4 	imes 7 + (3 = 31)$

Question 5

Simplify this expression:

$\enspace  6(2j - 4)$
$\,$

Accepted Answer

$12j - 24$

Answer

$12j - 6$

Answer

$6j - 4$

Answer

$-12j$

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