PENGENALAN BAHASA INGGRIS UNTUK PEMBELAJARAN MATEMATIKA Dr. H. Heris Hendriana, M.Pd.

PERTEMUAN-3

SAYING MATHEMATICAL SYMBOLS (Membaca dan Memahami Simbol-simbol matematika)

MEANINGFUL MATHEMATICS STATEMENT MATH SYMBOLS MEANINGFUL MATHEMATICS STATEMENT ≡ ≅ ∼ ≠ ≤ ≥ ∧ ∨ ∀ ∃ identically equal congruent with approximately not equal to less than or equal to greater than or equal to logical and logical or for all there exists

MEANINGFUL MATHEMATICS STATEMENT MATH SYMBOLS MEANINGFUL MATHEMATICS STATEMENT Σ ∠ N Z R ∅ ∞ x∈X x∉ X ary summation angle the set of natural numbers the set of whole numbers (integers) the set of real numbers an empty set an infinity sign an element x belongs to a set X an element x doesn’t belong to a set X

MEANINGFUL MATHEMATICS STATEMENT MATH SYMBOLS MEANINGFUL MATHEMATICS STATEMENT X ⊂ Y X ∪ Y X ∩ Y + − a set X is a subset of a set Y a union of sets X and Y an intersection of sets X and Y plus sign/added by minus sign/subtracted by

MEANINGFUL MATHEMATICS STATEMENT MATH SYMBOLS MEANINGFUL MATHEMATICS STATEMENT × ÷ √ ⊥ π ! ∫ [a,b] multiplication/multiplied by division/divided by square root/radical sign orthogonal to/perpendicular pi = 3,14159… factorial ∫integral a numerical sign

HOW TO SAY NUMBERS ( Cara Mengucapkan Bilangan)

1 digit numbers 2 digit numbers 3 digit 4 digit numbers Number forms 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 10, 11, 12, 13, 14, 15, 16,17, 18, 19 20, 30, 40, 50, 60, 70, 80,90 100, 300, 500, ... 2000, 4000, … Number forms in English zero, one, two, three, four,five, six, seven, eight, nine ten, eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety one hundred, three hundred, five hundred, ... two thousand, four thousand,...

5 digit numbers 6 digit numbers 7 digit numbers 8 digit numbers 9 digit numbers 10digit numbers Number forms 10 000, 30 000, ... 300 000 5 000 000 30 000 000 500 000 000 2 000 000 000 Number forms in English ten thousand, thirty thousand,... three hundred thousand five million thirty million five hundred million two billion

HOW TO SAY ORDINAL NUMBERS ( Cara Mengucapkan Bilangan Ordinal)

Word Ordinal numbers Abbreviation 1 2 3 4 5 6 7 8 9 10 first second third fourth fifth sixth seventh eight ninth Tenth Abbreviation 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th

HOW TO SAY NUMBER COMBINATION ( Cara Mengucapkan Kombinasi Bilangan)

Numbers 47 683 3562 Break down Equal (=) 40 + 7 Equal (=) 600 + 80 + 3 Equal (=) 3000 + 500 + 60 + 2 English Expression ‘forty seven’ ‘six hundred and eighty three’ ‘three thousand five hundred and sixty two

HOW TO SAY NUMBERS WITH DECIMAL POINT ( Cara Mengucapkan Bilangan Desimal)

Numbers 3.7 58.4 5.84 Break down Equal (=) 3 + 0.7 Equal (=) 50 + 8 + 0.4 Equal (=) 5 + 0.84 English Expression ‘Three point seven’ ‘Fifty eight point four’ ‘Five point eight four’

HOW TO SAY FRACTION ( Cara Mengucapkan Pecahan

Math Expression Penyebut Pembilang 37/5 3/7 English Expression A numerator A denominator Thirty seven over five Three over seven

Math Expression (Special Fraction) 1/2 1/3 2/3 1/4 ¾ 1/5 3/5 English Expression (Some fraction have a designated name, but the value of numerator should not more than the value of denominator) half one-third Two-thirds One-quarter Three-quarters One-fifth Three-fifths

HOW TO SAY MATHEMATICAL EXPRESSION ( Cara Mengucapkan Pernyataan Matematika)

Math Expression 25 + 352 = 377 45 – 56 = -11 3 × 7 = 21 24 : 6 = 4 4^3 = 64 5^2 =25 English Expression Twenty five plus three hundred and fifty two is three hundred and seventy seven Forty five minus fifty six is negative eleven Three multiplied by seven is twenty one Twenty four divided by six is four Four raised to the power of three is sixty four or four cubed is sixty four. Five raised to the power of to is twenty five or five square is twenty five

Math Expression English Expression 𝟔𝟐𝟓 = 25 𝟑 𝟔𝟒 = 4 𝟓 𝟑𝟐 = 2 x + y = 12 x = y – 10 x < y + 3 English Expression The square root of six hundred and twenty five is twenty five The cube root of sixty four is four or the third root of sixty four is four The fifth root of thirty two is two x plus y is twelve The value of x is equal to the value of y minus ten The value of x is less than the value of y plus three