Maths Substitution Quiz

How confident do you feel about substitution 1= not at all

5 = I rock

• 1

• 2

• 3

• 4

• 5

When f= 2 what is the value of 3f +5?

• 37

• 10

• 11

• I don't know

 $a^2\ \ when\ a=3$  

• 6

• 5

• 9

• I don't know

 $b^2\ when\ b=-4$  

• 16

• -8

• -16

• 6

• I don't know

 $2x^2\ when\ x\ =3$  

• 36

• 8

• 12

• 18

• I don't know

 $2x\ +\ 3y\ when\ x\ =3\ and\ y\ =100$  

• 3023

• 306

• 36

• 108

• I don't know

 $b^2+2c\ when\ b=3\ and\ c\ =2$  

• 7

• 10

• 13

• I don't know

 $10p^2-3q\ when\ p=1\ and\ q=2$  

• 16

• 4

• 94

• 7

• I don't know

 $r^{3\ }+r^2\ when\ r\ =3$  

• 36

• 15

• 11

• 90

• I don't know

 $3d^2+10f^2\ where\ d=10\ and\ f\ =1$  

• 310

• 1003

• 1000

• 13

• I don't know