วันจันทร์ที่ 7 มีนาคม พ.ศ. 2554

เฉลย การอ่าน ตัวเลข ทศนิยม และเศษส่วน


Numbers, Decimals, and Fractions
Instructions: fill in the blank with the correct numbers or words.
Numbers  จำนวนและตัวเลข
99   = ninety-nine                                            100 = one hundred
101 = A hundred and one                               109 = A hundred and nine
110 = A hundred and ten                               117 = A hundred and seventeen
208 = Two hundred and eight                         334 = Three hundred and thirty four
1,000 = one thousand                                     10,000 = ten thousand
11,000 = eleven thousand                               20,000 = twenty thousand
21,000 = twenty one thousand                       85,000 = eighty-five thousand 
100,000 = one hundred thousand                   999,000 = nine hundred and ninety nine
               thousand

Decimals and Fractions (ทศนิยมและเศษส่วน)
1/10 or 0.1 = one-tenth                                   1/8 = one eighth
2/10 or 0.2 = two-tenths                                 ¼ = one-quarter or one-fourth
3/10 or 0.3 =three-tenths                     1/3 = one-third
4/10 or 0.4 = four-tenths                                 1/2 = one – half
6/10 or 0.6 = six-tenths                                   5/8 = five eighths
3/7 = three sevenths                                        7/11 = seven elevenths
2/3 = two-thirds                                              7/10 or 0.7 = seven-tenths
¾ = three-quarters                                           1 ½ = one and a half
6 ¼ = six and one quarter                               5 5/8 = seven and five eighths
Quantity
Written
How to say it?
1,200,000
1.2 million
One point two million
3,000,000
3 million
Three million
250,000,000
250 million
Two hundred fifty million
6,400,000,000
6.4 billion
Six point four billion
23,380,000,000
23.38 billion
Twenty three point three eight billion
 Homework 

Can you find the best answer from this question?
Ex.  One plus two equal three  1 + 2 = 3
15 + 22 =                                 Fifteen plus twenty two equal thirty seven
             + 4 = 44                      forty plus four equal forty four
35+ 27 =                                                                                                                     
             = 91                                                                                                               
50-50 =                                    Fifty minute fifty equal zero
45 – 21 = 23                            Forty five minute twenty one equal twenty three
____ - ___ = 38                                                                                  
1/10 + 1/10 = 2/10                   one-tenth plus one-tenth equal two tenths
2/5 + 2/5 =                               two – fifths plus two – fifths equal four – fifths
3/10 – 1/10 = 2/10                                                                                                      
2 ½ + 2 ½ = 5                          Two and a half   plus  two and a half equal five
7 ½ +       =                                                                                                                 
Summary  สรุปการเรียนรู้
Ex.  1 = one                             100 = one hundred
201 = two hundred and one   300 = three hundred
404 = four hundred and four  1000 = one thousand
2010 = two thousand and ten             10,000 = ten thousand
45,000 = forty five thousand  100,000 = a hundred thousand
888,000 = eight hundred and eighty eight thousand
1,000,000 = one million
1,300,000 = one point three million
1/3 = one – third                     3/7 = three – sevenths
7 5/8 = seven and five eighths            ¼ = one quarter

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