Option killerविकल्प हटाओ विकल्प हटाओOption killer
Pick the exact product from four close options without multiplying it out.
Trick card
Last digit first, digit sum second
Multiply only the last digits: the answer must end in that digit.
If two options still survive, reduce each number to its digit sum (keep adding digits until one is left): the product’s digit sum must match.
47 × 38: 7 × 8 = 56 → ends in 6. Digit sums 2 × 2 = 4 → pick the option ending in 6 whose digits sum to 4 (1,786 → 22 → 4).
Choose a level
A right answer moves on by itself. Press Enter on an empty box to skip.
The fast way, by levelहर लेवल पर तेज़ तरीका
- 2-digit × 2-digit84 × 95 = 7,980Ends in 0 (4 × 5); digit sums 3 × 5 → 6 → 7,980
- 3-digit × 2-digit278 × 65 = 18,070Ends in 0 (8 × 5); digit sums 8 × 2 → 7 → 18,070
- 3-digit × 3-digit723 × 743 = 5,37,189Ends in 9 (3 × 3); digit sums 3 × 5 → 6 → 5,37,189