14.6k views
4 votes
Use mental math to estimate the unknown number. 4022/8=r

User Dagalpin
by
7.9k points

1 Answer

4 votes
well you know 5 times 8 is 40 so you can assume it's around 500, and the closest multiple of 8 to 22 is 24 which is 8 times 3, so can safely assume that r is around 503
User Anurag Bhalekar
by
8.1k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories