Number Sets And Notation
Bayani Gaba-gaba
Every number you have ever used belongs to a family. The counting numbers, the whole numbers, the integers stretching out below zero, the fractions that fill the gaps, and the stranger numbers that no fraction can ever name: mathematics gives each family a name and a precise piece of notation. Knowing which family a number lives in tells you instantly how it will behave.
In this lesson you will sort numbers into natural numbers, integers, rational and irrational numbers, and you will meet prime, square and cube numbers along the way. You will also learn the clean set language that examiners expect, so you can describe a collection of numbers exactly rather than vaguely.
Manufura
- Use natural numbers, integers (positive, negative and zero), prime numbers, square and cube numbers, and rational and irrational numbers, with correct set language and notation.
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Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- Which of these is an irrational number? A. 0.25 B. 3/5 C. sqrt(2) D. -4 Answer: C
- Which number is a natural number but NOT a prime number? A. 9 B. 7 C. 0 D. -3 Answer: A
- Which of these is NOT an integer? A. -4 B. 0 C. 7 D. 3/5 Answer: D
- If A = {1, 4, 9, 16}, what is n(A)? A. 1 B. 4 C. 16 D. 30 Answer: B
- Which list contains only cube numbers? A. 1, 4, 9, 16 B. 2, 3, 5, 7 C. 1, 8, 27, 64 D. 1, 3, 6, 10 Answer: C
Yi aikin wadannan tambayoyi a cikin manhaja
Yi aikin wadannan tambayoyi a cikin manhaja
Littattafan da ake ba da shawarar karantawa
Ƙarin koyo daga tushe na buɗe
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Sashen littafi
Rational and Irrational Numbers
Identify rational numbers and irrational numbers
"Prealgebra: Rational and Irrational Numbers" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/prealgebra/pages/7-1-rational-and-irrational-numbers. Access for free at https://openstax.org/books/prealgebra/pages/1-introduction
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