Multiply with regrouping 73x28

72x28
the first digit 2 in 72 times the first digit 8 in 28 equal 16
leave the 6 and carry the 1 over 7
8 times 7 equal 56 and so far your first answer is 566 your answer is

2016 just like this new year

So here is the answer. Normally, 10 people have 20 legs since each person has 2 legs each. But given the scenario that two people don't have legs, this would mean 20 minus 4, is 16 legs. Then one person has 3 legs, 16 plus 3 and it is 19. And then, another person has one leg, 19 plus 1 is 20. Therefore, the total legs would still be 20. Hope this helps. The dog does not count.