se numbers 2013

Numberscardinal, ordinal, Roman, decimals, fractions

Wednesday, April 17, 13

cardinal numbers

zero=0 sixteen=16 twenty thousand=20,000one=1 seventeen=17 a/one hundred thousand=100,000two=2 eighteen=18 a/one million=1,000,000three=3 nineteen=19 ten million=10,000,000four=4 twenty=20 five hundred million=500,000,000five=5 twenty-one=21 a/one billion=1,000,000,000six=6 thirty=30 fifty billion=50,000,000,000seven=7 forty=40 a/one trillion=1,000,000,000,000eight=8 fifty=50nine=9 sixty=60ten=10 seventy=70eleven=11 eighty=80twelve=12 ninety=90thirteen=13 a/one hundred=100fourteen=14 a/one thousand=1,000fifteen=15 ten thousand=10,000

Cardinal numbers are called 基数 in Japanese.

Wednesday, April 17, 13

cardinal numbers

Ichiro Suzuki

Keisuke Honda

Yukiko Ueno

Wednesday, April 17, 13

ordinal numbersOrdinal numbers are called 序数 in Japanese.

first=1st second=2ndthird=3rd*fourth=4thfifth=5thsixth=6thseventh=7theighth=8thninth=9thtenth=10theleventh=11thtwelfth=12th thirteenth=13thfourteenth=14thfifteenth=15thsixteenth=16th

*forth=前へ・先へ　fourth=4th

twentieth=20ththirtieth=30thfortieth=40thfiftieth=50thsixtieth=60thseventieth=70theightieth=80thninetieth=90thone hundredth=100th

Wednesday, April 17, 13

ordinal numbers

Wednesday, April 17, 13

Roman NumeralsRoman numerals are called ローマ数字 in Japanese.

one=I seventeen=XVII four hundred=CDtwo=II eighteen=XVIII five hundred=Dthree=III nineteen=XVIX six hundred=DCfour=IV twenty=XX seven hundred=DCCfive=V twenty-one=XXI nine hundred=CMsix=VI twenty-five=XXV a/one thousand=Mseven=VII thirty=XXX two thousand=MMeight=VIII forty=XLnine=IX forty-one=XLIten=X fifty=Leleven=XI sixty=LX

twelve=XII seventy=LXXthirteen=XIII eighty=LXXXfourteen=XIV ninety=XCfifteen=XV a/one hundred=Csixteen=XVI two hundred=CC

Wednesday, April 17, 13

Roman Numerals

Wednesday, April 17, 13

decimalsDecimals are called 小数 in Japanese.

1.1= one point one

2.5= two point five

.5= point five

.75=point seven five

.08=point oh eight / point zero eight

.03= point oh three / point zero three

3.14159= three point one four one five nine

77.6= seventy-seven point six

37.0= thirty seven point oh

98.6= ninety eight point six

Wednesday, April 17, 13

fractionsFractions are called 分数 in Japanese.

½=a/one half ⅙=a/one sixth

⅓=a/one third ⅚=five sixths

⅔=two thirds ⅛=an/one eighth

¼=a/one fourth ⅜=three eighths

¾=three fourths ⅝=five eighths

⅕=a/one fifth ⅞=seven eighths

⅖=two fifths ⅟₁₀=a/one tenth

⅗=three fifths 1½=one and a/one half

⅘=four fifths 1¾=one and three fourths

Wednesday, April 17, 13

fractions in mathfraction with

“x” We say...

X/2 x over 2

X/3 x over 3

X/4 x over 4

X/5 x over 5

Wednesday, April 17, 13

終了！！

Wednesday, April 17, 13