Unit 3 Let’s do math! LESSON 18 课件 (共15张PPT)
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| 名称 | Unit 3 Let’s do math! LESSON 18 课件 (共15张PPT) |  | |
| 格式 | zip | ||
| 文件大小 | 569.9KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 清华大学版 | ||
| 科目 | 英语 | ||
| 更新时间 | 2018-09-19 12:53:13 | ||
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课件15张PPT。UNIT 3
LET’S DO MATHLESSON 18十位数和个位数之间须用连字符“-”连接
eg. 21 twenty-one
54 fifty-four
63 sixty-three
78 seventy-eight
36 thirty-six
99 ninety-nine
Again212224twenty-onetwenty-twotwenty-four252729twenty-fivetwenty-seventwenty-nineLearn and say￥11￥29I had 40 Yuan. I bought a hat and scarf.
The hat was 11 Yuan.
The scarf was 29 Yuan.
How much money is left?
40-11=29, 29-29=0
Forty minus eleven is twenty-nine.
Twenty-nine minus twenty-nine is zero.
Zero Yuan is left.
￥15￥26I had 45 Yuan. I bought a hat and scarf.
The hat was 15 Yuan.
The scarf was 26 Yuan.
How much money is left?
45-15=30, 30-26=4
Forty-five minus fifteen is thirty
Thirty minus twenty-six is four.
Four Yuan is left.
￥17￥36I had 60 Yuan. I bought a hat and scarf.
The hat was 17 Yuan.
The scarf was 36 Yuan.
How much money is left?
60-17=43, 43-36=7
Sixty minus seventeen is forty-three.
Forty-three minus thirty-six is seven.
Seven Yuan is left.
￥21￥49I had 85 Yuan. I bought a hat and scarf.
The hat was 21 Yuan.
The scarf was 49 Yuan.
How much money is left?
85-21=64, 64-49=15
Eighty-five minus twenty-one is sixty-four.
Sixty-four minus forty-nine is fifteen.
Fifteen Yuan is left.
￥16￥23I had 50 Yuan. I bought a hat and scarf.
The hat was 16 Yuan.
The scarf was 23 Yuan.
How much money is left?
50-16=34, 34-23=11
Fifty minus sixteen is thirty-four.
Thirty-four minus twenty-three is eleven.
Eleven Yuan is left.
Homework: 回家用英文从一数到一百，
数给爸爸妈妈听吧！
LET’S DO MATHLESSON 18十位数和个位数之间须用连字符“-”连接
eg. 21 twenty-one
54 fifty-four
63 sixty-three
78 seventy-eight
36 thirty-six
99 ninety-nine
Again212224twenty-onetwenty-twotwenty-four252729twenty-fivetwenty-seventwenty-nineLearn and say￥11￥29I had 40 Yuan. I bought a hat and scarf.
The hat was 11 Yuan.
The scarf was 29 Yuan.
How much money is left?
40-11=29, 29-29=0
Forty minus eleven is twenty-nine.
Twenty-nine minus twenty-nine is zero.
Zero Yuan is left.
￥15￥26I had 45 Yuan. I bought a hat and scarf.
The hat was 15 Yuan.
The scarf was 26 Yuan.
How much money is left?
45-15=30, 30-26=4
Forty-five minus fifteen is thirty
Thirty minus twenty-six is four.
Four Yuan is left.
￥17￥36I had 60 Yuan. I bought a hat and scarf.
The hat was 17 Yuan.
The scarf was 36 Yuan.
How much money is left?
60-17=43, 43-36=7
Sixty minus seventeen is forty-three.
Forty-three minus thirty-six is seven.
Seven Yuan is left.
￥21￥49I had 85 Yuan. I bought a hat and scarf.
The hat was 21 Yuan.
The scarf was 49 Yuan.
How much money is left?
85-21=64, 64-49=15
Eighty-five minus twenty-one is sixty-four.
Sixty-four minus forty-nine is fifteen.
Fifteen Yuan is left.
￥16￥23I had 50 Yuan. I bought a hat and scarf.
The hat was 16 Yuan.
The scarf was 23 Yuan.
How much money is left?
50-16=34, 34-23=11
Fifty minus sixteen is thirty-four.
Thirty-four minus twenty-three is eleven.
Eleven Yuan is left.
Homework: 回家用英文从一数到一百，
数给爸爸妈妈听吧！