Q. 3 C5.0( 1 Vote )

# Find out the larger product of each pair below, without actual multiplication.

10.6 × 9.4, 10.4 × 9.6

Answer :

Using identity-

10.6 × 9.4 = (10+0.6)(10-0.6)= -

10.4 × 9.6 = (10+0.4)(10-0.4)= -

clearly 10.4 × 9.6 is the larger product

since in this we are subtracting from whereas in 10.6×9.4 we are subtracting from

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Compute the following in head:

68^{2} – 32^{2}

Find out the larger product of each pair below, without actual multiplication.

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Kerala Board Mathematics Part ICompute the following in head:

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(125 × 75) – (126 × 74)

Kerala Board Mathematics Part I