alleryWhy can the 9 × 9 grid drop its row and column for 0?
AAny product with 0 is 0
BIt repeats the 9 row
C0 is not a number
DIt equals the 1 row
Answer & Solution
Correct answer: A. Any product with 0 is 0
1. 0 × a = 0 for any number a.
2. So that row and column hold nothing new.
3. They are left out of the usual table.
_Source: Wikipedia, Multiplication table (CC BY-SA 4.0, rev 1379867676), Modern times_
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