To Infinity and beyond Grade 4

Domu thinks a lot about maths.  Recently, he had been thinking about whether zero multiplied by infinity is 0 or infinity.

While having lunch with the family:

Domu: Daddy, I think I know if zero times infinity is 0 or infinity.

Daddy: How?

Domu: Zero divided by zero is infinity because you can put an infinite number of zeros in zero.  So 0 / 0 = infinity.  If you multiply both sides by 0, you get 0 = infinity * 0, so infinity * 0 = 0.

Pia: (baffled at what the heck Domu is talking about) Daddy, will I be talking like that when I’m in grade 6?

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