OpenStax, Contemporary Mathematics §3.2 The Integers · Example 9 · Arithmetic · Integers
The Integers · Example 9
Use your calculator to calculate 18 − 9. Explain how the answer agrees with what was expected.
OpenStax, Contemporary Mathematics · §3.2 The Integers · Example 9
Stuck? A gentle nudge
No hints for this one.
Your working
Check your full solution
Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.