Find the square of 28 without actual multiplication
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Answered by
8
You can find out the square of 28 without doing the actual multiplication by multiplying 28 with 10 and multiplying the result by two. Then multiply 28 by 8 and add both the results.
(28 x 10) 2 + (28 x 8)
= 280 x 2 + 24
= 560 + 224
= 784
(28 x 10) 2 + (28 x 8)
= 280 x 2 + 24
= 560 + 224
= 784
Answered by
5
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