NumbersVersion en ligne Check the numbers that you hear. par Luder Juan 1 nine 2 sixteen 3 six 4 thirteen 5 twenty 6 fourteen 7 seventeen 8 zero 9 ten 10 seven 11 fifteen 12 eighteen 13 nineteen 14 three 15 two 16 one 17 four 18 five 19 eight 20 eleven 21 twelve