3 Answered Questions for the topic mental math
how to solve 32 x 25
how to do problem like the following super fast? 99+98+97+96...+2+1/99!
Steps to solve the question please. 99+98+97...+2+1/99 factorial
You can roll six different numbers with one toss of a number cube. You can roll eleven different numbers with one toss of two number cubes. How many different numbers can you roll with one toss of... more