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The method to find the product of 46 × 28 is shown below. (i) Observe the method in 2 two digit numbers.

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The method to find the product of 46 × 28 is shown below.

(i) Observe the method in 2 two digit numbers.

(ii) Two digit numbers are expressed in the algebraic form, 10 m + n

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(i) 57 × 24

(ii) If ab, cd are the numbers

ab × cd

(10a + b) (10c + d)

10a × 10c + 10a × d + 10c × b + b × d

100 × ac + 10 (ad + cb) + bd

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