Matching Pairs NumbersOnline version The following game is to identify people's attention and learning about numbers by CARLOS ALBERTO AVILES CASTANEDA 1 526 2 29 3 25 4 254 5 12 6 821 7 20 8 13 9 11 10 528 Twelve Two hundred and fifty four Twenty Twenty nine Five hundred and twenty - eight Thirteen Eight hundred and twenty - one Five hundred and twenty - six Eleven Twenty five