Name: Class: Date: SETS OF NUMBERS TURKISH ℕ! ENGLISH DESCRIPTION Natural or Counting Numbers (Sayma Sayıları) ℕ {1,2,3,4,……} ℕ Whole Numbers (Doğal Sayılar) 𝕎 {0,1,2,3,……} ℤ Integers (Tamsayılar) ℤ {…..,-2,-1,0,1,2,…..} Rational Numbers (Rasyonel Sayılar) ℚ ℚ" ℝ ℂ ℚ 𝑎 ; 𝑎, 𝑏 ∈ ℤ, 𝑏 ≠ 0 𝑏 Irrational Numbers (İrrasyonel Sayılar) ℚ" ℝ∖ℚ Real Numbers (Gerçel Sayılar) ℝ ℚ ∪ ℚ! = ℝ Complex Numbers (Karmaşık Sayılar) -1 = i ℂ 1 Use of “ – “, “ , “ and “ .“ are important!! NUMBERS NUMBERS WORDS NUMBERS WORDS 0 zero 45 …………….……….. 1 one 50 ……………….…….. 60 sixty 2 two 3 ……… 70 …………………...… 4 four 77 ……..……………… 5 ……... 80 eighty 6 …… 90 ……… 7 seven 100 one hundred 112 ….…………………….. 8 …….. 9 nine 200 two hundred 10 ten 247 ………………….. 11 …….. 396 three hundred ninety-six 12 …….. 519 ………………………… 13 thirteen 999 ………………………… 14 ……….. 1,000 one thousand 15 ……….. 5,015 ………………………… 16 sixteen 10,000 ten thousand 17 seventeen 16,860 sixteen thousand eight hundred sixty 18 ……….. 47,151 ..…….……………………………... 19 nineteen 100,000 one hundred thousand 20 ……. 450,020 four hundred fifty thousand twenty 28 ……….. 990,519 ……………………………………... 30 thirty 1,000,000 one million 32 …….……… 52,016,003 …………………………..…………. 40 ..……… 1,000,000,000 one billion 2 HOMEWORK: 1) Write in words. a) 49 b) 187 c) 3,026 d) 10,308 e) 40,911 f) 100,012 g) 660,606 h) 9,670,014 i) 38,000,013 j) 12,012,002 k) 1,003,691 l) 314,647,811 2) Answer in numbers. a) What comes after five thousand ninety? b) What comes before ten thousand? c) What comes before nine hundred eleven? d) What comes after eight million eighty-nine? e) What comes before thirty thousand three hundred three? f) What comes after eleven thousand fifteen? 3 ORDINAL NUMBERS Ordinal numbers show order. 1st – first 30th – 2nd – second 33rd – thirty-third 3rd – third 40th – 4th – fourth 50th – 5th – 52nd – 6th – sixth 60th – 7th – seventh 68th – sixty-eighth 8th – 70th – 9th – 76th – 10th – tenth 80th – 11th – eleventh 84th – eighty-fourth 12th – 90th – 13th – thirteenth 97th – 14th – fourteenth 100th – 15th – 165th – 16th – sixteenth 242nd – 17th – seventeenth 500th – 18th – eighteenth 978th – 19th – nineteenth 1,000th – 20th – 10,000th – ten thousandth 21st – twenty-first 100,000th – 29th – 1,000,000th – 4