Column method for squaring a two digit number
Column method for squaring a two digit number
Hello friends i am going to tell about 'Column method for squaring a two digit
number. We urge you have friends, you will definitely share this post to us. Millions of thousand people's access to this knowledge. Thanks!
---------------------------------------------------------
There are following steps to find the square a two digit number:-
---------------------------------------------------------
Let the given number have the tens digit = a and the units digit = b
Then, we have to square this number.
Step 1 . Make three Columns, I II and III, headed by a^2, (2 x a x b) and b^2 respectively Write the vales of a^2, (2 x a x b) and b^2 in columns I, II and III respectively.
Step 2. In Column III, underline the units digit of b^2 and carry over the tens digit of it to Column II and add it to the value of (2 x a x b)
Step 3. In Column II, underline the unit digit of the number obtained in Step 2 and carry over tens digit of it to Column I and add it to the value of a^2.
Step 4. Underline the number obtained in Step 3 in Column I.
The underlined digits give the required square number.
-----------------------------------------------------------------------
Example: Find the square of 47
Solution: Given number = 47
So a=4 and b=7
I II III
a^2 2ab b^2
16
+6
22 56
+4
60 49
Hence the square of 47 = 2209
एक टिप्पणी भेजें
प्रिय दोस्त, आपने हमारा पोस्ट पढ़ा इसके लिए हम आपका धन्यवाद करते है. आपको हमारा यह पोस्ट कैसा लगा और आप क्या नया चाहते है इस बारे में कमेंट करके जरुर बताएं. कमेंट बॉक्स में अपने विचार लिखें और Publish बटन को दबाएँ.