Patterns and Algebra Quick Quiz

Evaluate this expression by substituting a = 5

2a + 5

• 20

• 12

• 15

• 30

Evaluate this expression by substituting f = 4

26 - f

• 20

• 22

• 24

• 30

What is the coefficient in this expression

2x + 5

• x

• 5

• 2

• +

What is the constant in this expression

12b + 4

• 12

• 4

• b

• +

What is the variable in this expression

23p + 44

• 23

• 44

• p

• +

Write an expression for this statement

add 5 to a number and then multiply by 2

• 5 + p $\times$ 2

• 2 $\times$ 5p

• 2(x + 5)

• 2x + 5

Write an expression for this statement

Add 2 to a number and then divide by 4

• $\frac{a+\ 2}{4}$

• $\frac{2\ +\ a}{4}$

• $a+2\div4$

• $2+a\div4$

Write an expression for this statement

Take 5 away from a number

•  $5-p$  

•  $p-5$  

•  $p+5$  

•  $5+p$  

Evaluate this expression by substituting a = 5, b=6, c=2

 $2a+b-c$  

• 12

• 10

• 16

• 14

Evaluate this expression by substituting b=10, c=13

 $\frac{b+2c}{3}$  

• 6

• 10

• 12

• 36