Question

15.21–3.9–4.7+6.79 Calculate in the fastest way possible!

Answer 1

Hello :))

Your answer is 13.4

Hope this helps :))

Answer 2

13.4

Explanation:

=15.21-3.9-4.7+6.79

=15.21+6.79-3.9-4.7

=22-3.9-4.7

=18.1-4.7

=13.4