小学英语清华大学版三年级上册Unit 3 Let’s do math!说课课件ppt

这是一份小学英语清华大学版三年级上册Unit 3 Let’s do math!说课课件ppt，共16页。PPT课件主要包含了Again，twenty-one，twenty-two，¥11，¥29，¥15，¥26，¥17，¥36，¥21等内容，欢迎下载使用。

十位数和个位数之间须用连字符“-”连接eg. 21 twenty-ne 54 fifty-fur 63 sixty-three 78 seventy-eight 36 thirty-six 99 ninety-nine
twenty-five
twenty-seven
twenty-nine
Learn and say
I had 40 Yuan. I bught a hat and scarf.The hat was 11 Yuan. The scarf was 29 Yuan.Hw much mney is left?
40-11=29, 29-29=0Frty minus eleven is twenty-nine.Twenty-nine minus twenty-nine is zer.Zer Yuan is left.
I had 45 Yuan. I bught a hat and scarf.The hat was 15 Yuan. The scarf was 26 Yuan.Hw much mney is left?
45-15=30, 30-26=4Frty-five minus fifteen is thirtyThirty minus twenty-six is fur.Fur Yuan is left.
I had 60 Yuan. I bught a hat and scarf.The hat was 17 Yuan. The scarf was 36 Yuan.Hw much mney is left?
60-17=43, 43-36=7Sixty minus seventeen is frty-three.Frty-three minus thirty-six is seven.Seven Yuan is left.
I had 85 Yuan. I bught a hat and scarf.The hat was 21 Yuan. The scarf was 49 Yuan.Hw much mney is left?
85-21=64, 64-49=15Eighty-five minus twenty-ne is sixty-fur.Sixty-fur minus frty-nine is fifteen.Fifteen Yuan is left.
I had 50 Yuan. I bught a hat and scarf.The hat was 16 Yuan. The scarf was 23 Yuan.Hw much mney is left?
50-16=34, 34-23=11Fifty minus sixteen is thirty-fur.Thirty-fur minus twenty-three is eleven.Eleven Yuan is left.
回家用英文从一数到一百，数给爸爸妈妈听吧！