Matching Pairs Exponent MatchingOnline version 5.NBT.1 by Andrea Wonka 1 10x10x10x10 2 10^5 3 10x10x10 4 10^3 5 10x10x10x10x10 6 10^2 7 10^4 8 10x10x10x10x10 9 10x10x10 10^3 1000 1,000 10000 10^5 100 100,000 100,000 10^4