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10 cards from this deck
Very large or very small numbers
Multiply the number parts separately
Add the powers
am×an=a(m+n)a^m \times a^n = a^{(m+n)}am×an=a(m+n)
Divide the number parts
Subtract the powers
am÷an=a(m−n)a^m \div a^n = a^{(m-n)}am÷an=a(m−n)
Convert to ordinary form, calculate, convert back
1≤first number<101 \leq \text{first number} < 101≤first number<10
Cannot directly add/subtract numbers with different powers of 10
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