Question

(1). Simplify.

22÷(9+2)

Enter your answer in the box.


(2).Evaluate.
8+3⋅42

A.8

B.10

C.16

D.22

(3).Which expression has a value of 3?


A.(12+6)÷(3+3)

B.(12+6)÷3+3

C.12+6÷(3+3)

D.12+(6÷3+3)


(4).Which expression has a value of 74?

A.(75−5)×(1+4)

B.75−5×(1+4)

C.75−(5×1+4)

D.(75−5)×1+4

Answer 1

`22 / (9 + 2) = 2`
22/11
=2

Answer 2

1)
`22/ (9+2)=2`

2)
`8+3\cdot 42=134`

3) Option A -
`(12+6)/(3+3)`

4) Option D -
`(75-5)* 1+4`

Explanation:

1) Simplify
`22/ (9+2)`

Solution :

Add the terms in bracket,

`22/ (9+2)=22/ 11`

Divide,

`22/ (9+2)=2`

2) Evaluate
`8+3\cdot 42`

Solution :

Solve the dot product,

`8+3\cdot 42=8+126`

Add the terms,

`8+3\cdot 42=134`

3) Which expression has a value of 3?

Solution : Solve each expression,

A.
`(12+6)/(3+3)`

`(12+6)/(3+3)=18/ 6=3`

B.
`(12+6)/3+3`

`(12+6)/3+3=18/ 3+3=6+3=9`

C.
`12+6/(3+3)`

`12+6/(3+3)=12+6/ 6=12+1=13`

D.
`12+(6/3+3)`

`12+(6/3+3)=12+(2+3)=12+5=17`

Option A is correct.

4) Which expression has a value of 74?

Solution : Solve each expression,

A.
`(75-5)*(1+4)`

`(75-5)*(1+4)=70* 5=350`

B.
`75-5*(1+4)`

`75-5*(1+4)=75-5* 5=75-25=50`

C.
`75-(5*1+4)`

`75-(5*1+4)=75-(5+4)=75-9=66`

D.
`(75-5)* 1+4`

`(75-5)* 1+4=70* 1+4=70+4=74`

Option D is correct.