Matching Pairs Big numbersOnline version Practice hearing big numbers by Bárbara Brasileiro Cristovão 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 1987 108,900 605,000 1879 2012 118,009 2020 200,020 60,000 12,020 605 235,298 20,012 253,289 13,000 180,090 1,600 1,300 20,020