IMC 2015 Q1
1. What is the value of 1 − 0.2 + 0.03 − 0.004?
- A 0.826
- B 0.834
- C 0.926
- D 1.226
- E 1.234
Intermediate Mathematical Challenge 2015, Question 1. © UK Mathematics Trust. Original paper on ukmt.org.uk
Answer: A 0.826
1 − 0.2 + 0.03 − 0.004 = 0.8 + 0.026 = 0.826.
Solution © UK Mathematics Trust, from the IMC 2015 solutions. Longer versions with investigations: Solutions and investigations (PDF).