CBSE Class 8 Answered
Find the square of the number 986 using diagonal method.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Using diagonal method, we have
From above, we have 6-digit square number which is obtained as below:
6th digit = 6
5th digit = 4 + 3 + 4 = 11 (1 carry forward)
4th digit = 8 + 5 + 1 + 5 + 8 + 1 = 28 (2 carry forward)
3rd digit = 4 + 2 + 8 + 2 + 4 + 2 = 22 (2 carry forward)
2nd digit = 7 + 4 + 7 + 2 = 20 (2 carry forward)
1st digit = 6 + 2 = 8
Hence, the required number is 802816.
Answered by | 04 Jun, 2014, 03:23: PM
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