3a) Write the numbers.

21 — twenty-one; 30 — thirty; 35 — thirty-five; 40 — forty; 43 — forty-three; 50 — fifty; 59 — fifty-nine; 60 — sixty; 67 — sixty-seven; 70 — seventy; 72 — seventy-two; 80 — eighty; 88 — eighty-eight; 90 — ninety; 94 — ninety-four; 100 — a hundred.