【正文】
766,187= seven hundred and fortythree thousand, two hundred and ten seven million, seven hundred and sixtysix thousand, one hundred and eightyseven Are you good at calculation? Let’s play a game. A: What’s ______ plus ______? B: It’s _______. 4,567 ____________ + 4,567 6,789 6,789 11,356 11,356 Do exercises B2 and B3 on page 11 How do you write it? Ordinal numbers 1st = first 10th = 2nd = second 11th =eleventh 3rd = third 12th =twelfth 4th = fourth 13th= 5th = fifth 20th =twentieth 6th = 21st=twentyfirst 7th = 22nd= 8th = 23rd= 9th =ninth