[2] Use the formulas to calculate
the values of
v and s when
u = 12 , a =

3 , t = 6 ______________________________________________________________________
_______________________________________________________________________________________________________________
u =

5 , a =

4 , t = 2 ______________________________________________________________________
_______________________________________________________________________________________________________________
[3] Use this formula to work out the value of d
when a , b and c have the values shown.
When a =

1 , b = 2 and c = 5 _____________________________________________________
When a = 2 , b = 5 and c =

3 __________________________________________________________
When a = 3 , b =

6 and c = 2 __________________________________________________________
When a =

4 , b =

1 and c =

5 __________________________________________________________
When a =

7 , b =

4 and c =

1 __________________________________________________________
Substitution into Formulas Alg2.9
[1] Substitute each value of into the
formula to calculate the value of y.
If =

5 and y = 4 + 3 then _________________________________________________________
If =

9 and y = 3

2 then _________________________________________________________
If =

3 and y = 6

4 then _________________________________________________________
If =

1 and y = 1 + 8 then _________________________________________________________
If =

4 and y = 10

² then _________________________________________________________
Use a calculator to check your answers.
GCSE
SKILLSHEETS © COPYRIGHT L.Henry 2010
d = b²

4ac
s = ut + ½at²
These formulas
are used to
calculate speeds
and distances.
Work out the
calculations in the
brackets first.
Finish the
calculations.
y = 4 + ( 3 x 5 ) = 4 +  l5 =
y = 3

( 2 x

9 ) = 3


l8 =
v = u + at
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