1 It is hard to imagine how big a billion is. A billion is 1 000 000 000 (or one thousand million). There are 1 000 millimetres in 1 metre and 1 000 metres in 1 kilometre. How many millimetres are in 1 - QAmmunity.org

1 It is hard to imagine how big a billion is. A billion is 1 000 000 000 (or one thousand million). There are 1 000 millimetres in 1 metre and 1 000 metres in 1 kilometre. How many millimetres are in 1

asked Jul 3, 2021 130k views

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