Math · Age 10 · Ratio, Proportion & Early Algebra
Substituting Values into Simple Formulas (Ex. 3)
Challenge: substitute values into formulas and interpret results.
Module
Ratio, Proportion & Early Algebra
Age
Age 10
Duration
10 min
Questions
5
What's in this exercise
Answers are hidden — sign up to practise and check your work.
Question 1
Multiple choice
The formula for the volume of a cuboid is V = l × w × h. Find V when l = 4, w = 3, h = 2.
Question 2
Multiple choice
Using T = 3n - 1, find T when n = 7.
Question 3
Multiple choice
A formula gives cost C = 2.50 × n + 1.00. What is C when n = 4?
Question 4
Sequence
Values of 2(n + 1) for n = 0, 1, 2, 3, 4: 2, 4, 6, ___, 10. What is the missing value?
Question 5
True or false
Using V = l × w × h, when l = 5, w = 2, h = 3, V = 30.