The doubling square trick is a simple mathematical shortcut designed for class 6 to 10 students to make multiplication easier. By using the formula (n-1) × (n+1) = n² - 1, students can quickly ...
A new way to teach elementary school students multiplication is causing some controversy — but it may be easier than the method you probably learned in school. You probably learned multiplication ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback