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Luis Fernandez Fuent... ∙
1,000,000,000,000x1,000 = 1000000000000000
Elna Howe ∙
It really easy. Just 1x1=1 just add all the zeros. Take the zeros from 10000000000000 and 1000. I got: 1000000000000x1000= 10,000,000,000,000,000