Learning Mathematic With English
A. Mathematical Symbols
Math symbols
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Meaningful mathematics statement
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Math symbols
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Meaningful mathematics statement
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≡
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identically equal
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¥
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an infinity sign
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≅
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congruent with
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x ∈ X
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an element x belongs to a set X
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∼
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approximately
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x ∉ X
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an element x doesn’t belong to a set X
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≠
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not equal to
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X ⊂ Y
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a set X is a subset of a set Y
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≤
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less than or equal to
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X ∪ Y
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a union of sets X and Y
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≥
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greater than or equal to
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X ∩ Y
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an intersection of sets X and Y
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∧
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logical and
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+
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plus sign/added by
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∨
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logical or
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-
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minus sign/subtracted by
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∀
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for all
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´
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multiplication/multiplied by
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∃
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there exists
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¸
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division/divided by
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Σ
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n-ary summation
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Ö
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square root/radical sign
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Ð
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Angle
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^
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orthogonal to/perpendicular
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N
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the set of natural numbers
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p
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pi = 3,14159…
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Z
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the set of whole numbers (integers)
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!
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factorial
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R
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the set of real numbers
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∫
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integral
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Æ
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an empty set
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[a,b]
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a numerical sign
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B. How to say number and symbols
Number forms
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Number forms in English
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1 digit number
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9
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zero, one, two, three, four, five, six, seven, eight, nine
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2 digit number
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10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 30, 40, 50, 60, 70, 80, 90
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ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen, twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety
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3 digit number
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100, 300, 500, ...
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one hundred, three hundred, five hundred, ..
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4 digit number
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2000, 4000, …
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two thousand, four thousand, ...
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5 digit number
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10 000, 30 000, ...
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ten thousand, thirty, thousand,...
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6 digit number
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300 000
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three hundred thousand
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7 digit number
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5 000 000
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five million
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8 digit number
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30 000 000
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thirty million
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9 digit number
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500 000 000
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five hundred million
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10 digit number
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2 000 000 000
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two billion
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C. How to say fraction
Generally, we can say a fraction sign (ex: a:b or a/b) with word ‘over’, for example:
a. 37:5 , it should be said as ‘thirty seven over five’.
b.3:7 , it should be said as ‘three over seven’
Note : The upper part of fraction called a numerator, the lower part of a fraction called a denominator.
c. Some fractions already have a designated name, but the value of the numerator should not more than the value of the denominator.
Example:
½ is half
x:3 is x-third; one-third, two-thirds, not five-thirds
x:4 is x-quarter; one-quarters, three-quarters, not seven-quarters
x:5 is x-fifth; one-fifth, two-fifths, three-fifths, not nine-fifths
D. How to say mathematical expression
Math expression
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English expression
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25 + 352 = 377
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Twenty five plus three hundred and fifty two is three hundred and seventy seven
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45 – 56 = -11
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Forty five minus fifty six is negative eleven
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3 × 7 = 21
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Three multiplied by seven is twenty one
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24 : 6 = 4
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Twenty four divided by six is four
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43 = 64
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Four raised to the power of three is sixty four or four cubed is sixty four
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Ö625= 25
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The square root of six hundred and twenty five is twenty five
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3Ö64 = 4
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The cube root of sixty four is four or the third root of sixty four is four
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3Ö32 = 2
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The fifth root of thirty two is two
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x + y = 12
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x plus y is twelve
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x = y – 10
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The value of x is equal to the value of y minus t
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x < y + 3
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The value of x is less than the value of y plus three
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E. Mathematics In English termsBuild Flat Forms in English:
F. Types of Angles in English:
- Bilangan Bulat = Integers (Z)
- Bilangan Asli = Natural number (N)
- Bilangan Cacah = Whole number (W)
- Bilangan Genap = Even number
- Bilangan Ganjil = Odd number
- Penjumlahan = Addition
- Pengurangan = Subtraction
- Pembagian = Divisio
- Perkalian = Multiplication
- Sifat asosiatif = Associative principle
- Sifat komutatif = Commutative principle
- Kelipatan persekutuan terkecil (KPK) = Least common multiple
- Faktor persekutuan terbesar (FPB) = Greatest common divisor
- Pecahan = fraction
- Pecahan-pecahan yang senilai dan tidak senilai = Equality and inequality of rational numbers
- Pecahan campuran = Mixed rational number
- Desimal = Decimals
- Operasi bilangan desimal = The operations of decimals
- Garis bilangan = The number line
- Bentuk baku = Scientific notation
- Pangkat bilangan = Powers of numbers
- Bentuk aljabar = Algebraic forms
- Aritmatika sosial = Social arithmetic
- Persamaan linier = Linear equations
- Variabel = Variable
- Pertidaksamaan linier = Linear inequalities
- Modulus (Pengayaan) = Enrichment
- Perbandingan = Proportion
- Pembilang= Numerator
- Penyebut = Denominator
- Perbandingan seharga = Direct proportion
- Perbandingan berbalik harga = Inverse proportion
- Garis = Lines
- Sudut = Angles
- Derajat = Degrees
- Keliling = Circumference
- Luas = Area
- Sisi = Side
- Sudut dalam = Interior angle
- Himpunan = Sets
- Himpunan semesta = Universal set
- Gabungan himpunan = Union of sets
- Irisan himpunan = Intersection of sets
- Komplemen suatu himpunan = Complement of a set
- Diagram Venn = Venn diagrams
- Himpunan-himpunan yang sama = Equal sets
- Himpunan-himpunan yang ekuivalen = Equivalent sets
- Himpunan-himpunan yang saling lepas (Saling asing) = Disjoint sets
Referensi:
http://www.bymath.com/symbols/symbols.html
http://shinduasha.blogspot.com/2010/02/istilah-matematika-dalam-bahasa-inggris_26.html
