MULTIPLYING TWO NUMBERS WHOSE DIFFERENCE IS SMALL EVEN NUMBER. Rule: Square the number midway between the two given numbers; then square...

MULTIPLYING TWO NUMBERS WHOSE DIFFERENCE IS 6. Rule: Square the number midway between the two given numbers and subtract 9. Example: 1....

MULTIPLYING TWO NUMBERS WHOSE DIFFERENCE IS 2. Rule: Square the number between the two given numbers and subtract 1. This short cut is...

MULTIPLYING ANY TWO DIGITS NUMBER WHOSE DIFFERENCE IS 3. Rule: Square one more than the smaller number and add one less than the smaller...