| 2n3 multiplications |
2-by-1 and 3-by-1 digit multiplications |
Math |
2020-12-19 |
Rodrigo Venancio |
8888 |
4 |
edit |
|
| Subtraction Stack |
Subtraction stack exercise |
Math |
2017-02-28 |
Rodrigo Venancio |
3160 |
1 |
edit |
|
| Addition Stack |
Addition Stack |
Math |
2020-12-19 |
Rodrigo Venancio |
3160 |
2 |
edit |
|
| Multiplication |
Intermediate multiplication |
Math |
2017-02-28 |
Rodrigo Venancio |
3081 |
1 |
edit |
|
| 2 digit squaring |
Squaring 2 digit numbers |
Math |
2017-02-28 |
Rodrigo Venancio |
89 |
1 |
edit |
|
| 3 digit squaring |
Squaring 3 digit numbers mentally |
Math |
2015-06-17 |
Rodrigo Venancio |
899 |
0 |
edit |
|
| Friendly Products |
When two numbers multiplied result in a number with a 0 in the center |
Math |
2015-06-17 |
Rodrigo Venancio |
48 |
0 |
edit |
|
| 2 digit cubin |
Take to the third power any two-digit number metally |
Math |
2017-02-28 |
Rodrigo Venancio |
89 |
1 |
edit |
|
| Fractions |
Memorize the fractions up to the denominator 11 |
Unfinished |
2015-06-19 |
Rodrigo Venancio |
45 |
0 |
edit |
|
