Question

31×51 iska trick show kara​

Answer 1

Answer:

See the above pic

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Answer 2

Answer:

the answer is 1581

fist whe have to take 5 in 31×51 and multiply 5 with first 1 and then 3 then what answer you get leave space between last number and then you have to multiply the 1 with 1 and then with 3 now you will get two pairs then you have them then the answer is 1581