Read numbers in English by placing commas after every three digits.
Read numbers in English by using commas every three decimal places.
xx桁ずつ→every 2 digits, every 3 digits, etc.
①Read numbers in English by placing commas after every three digits.
3桁ずつカンマを置いて(カンマで区切って)英語で数字を読む。
②Read numbers in English by using commas every three decimal places.
小数位3桁ずつにカンマを使って、英語で数字を読む(少数位3桁ずつカンマで区切って、英語で数字を読む。)
→What's the easiest way to read numbers in English?
「英語で数字を読むのに、一番読み易い読み方は何?」
ご参考になれば幸いです。