SHORTCUTS TO SQUARE NUMBERS

SHORTCUT 1

TO SQUARE A 2 DIGIT NUMBER THAT ENDS IN 5

EXAMPLE 1

STEP 1:

• Multiply the first digit of the number with a number which is greater than the first number by one. For example:25

• 2 is the first digit number. The number that comes after 2 is 3 on the number line. Now multiply 2 & 3. The answer is 6.
• Now add 25 at the end of the result.
• The answer is 625.