Ohtani’s Batting Average Sep 2024 khoitsma Kids (middle school and up), Mathematics, Mental Math 0 Comments
What is the Day of the Week? Jan 2024 khoitsma General, Kids (middle school and up), Mathematics, Mental Math 0 Comments Continue Reading
Engineering Math Nov 2023 khoitsma Engineering, Kids (middle school and up), Mathematics, Mental Math 0 Comments “Often while working, an arithmetical answer is needed — exact is sometimes required, approximate is often acceptable — maybe the basis of a decision or a path forward is based on a few quick calculations, with more rigorous calculations to follow Multiply by 11 (or 12). Just write down the answer ! Pascal’s Triangle Aliquot Parts Continue Reading
Rechnen, Multiplizieren und Addieren Nov 2022 khoitsma Kids (middle school and up), Mathematics, Mental Math 0 Comments Sum the numbers — let me count the ways Continue Reading
On Average Jun 2022 khoitsma Kids (middle school and up), Mathematics, Mental Math 0 Comments Most everyone in math knows these tricks — here’s a summary of techniques used to make quick mental calculations of averages. Continue Reading
Lucky Me Jun 2022 khoitsma Computer Algebra, General, Mathematics, Mental Math, Personal, Python, Software 0 Comments As a kid and later through my career, several lucky things happened to me; some of these things were fortuitous and some happened because I searched them out — either way, still lucky. Continue Reading Posts navigation Older posts