Lekcja 2 A

SJO PW - Język ANGIELSKI ogólnotechniczny, Poziom B2
Lekcja 2 A
Opracowanie: AGNIESZKA PISAREK
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Mathematical Symbols
Symbol
+
÷
×
a=b
How to read it
plus, and
minus, subtract, take away
(is) divided by
(is) multiplied by, times
a equals b
a is equal to b
equation
/dɪˈvʌɪdɪd/
/ˈmʌltɪplʌɪd/
/ˈiːkw(ə)lz/
a≈b
P⇒Q
a is approximately equal to b
P implies Q
/əˈprɒksɪmətli/
/ɪmˈplʌɪz/
P⇐Q
P is implied by Q
P⇔Q
P is equivalent to Q or
P if and only if Q
a is an element of B
A union B
A intersection B
A is a subset of B or
A is contained in B
squared
cubed
to the power 5 or
to the fifth power / to the fifth
e.g.
+3=8
a∈B
A∪B
A∩B
A⊂B
n
n
4!
>
≤
º
dy
f ’(x) = 2 x
log10(1000) = 3
sin x
cos x
tan x
cot x
/ɪˈkweɪʒ(ə)n/
the square root of (a number)
the cube root of (a number)
/kjuːb/ /ruːt/
/fakˈtɔːrɪəl/
4 factorial
is more than, is greater than
is less than or equal to
infinity
degree
function of x
or
f of x
differential of y
/ˌdɪfəˈrɛnʃ(ə)l/
the (definite) integral of the function f of over from a to b
nnnnnnnnnnnnnnnn
/ˈɪntɪgr(ə)l/
the derivative of f(x) equals 2 x
the logarithm of 1000 to base 10 is 3 or
the base-10 log of 1000 is 3 or
log base 10 of 1000 is 3
/ˈlɒgərɪθ (ə)m/ /ˈlɒg/
sine x
/sʌɪn/
cosine x
/ˈkəʊsʌɪn/
tangent x
/ˈtan(d)ʒ(ə)nt/
cotangent x
/kəʊˈtandʒ(ə)nt/
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SJO PW - Język ANGIELSKI ogólnotechniczny, Poziom B2
Opracowanie: AGNIESZKA PISAREK
Lekcja 2 A
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Complete the crossword.
Mathematical Symbols
Across
Down
1. 1 º (1 …)
1. d
2. –
4. x3
3.
5. !
7. ≈
6. cos
10. ⇔
8. ∞
11. ∩
9. log
12. =
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SJO PW - Język ANGIELSKI ogólnotechniczny, Poziom B2
Opracowanie: AGNIESZKA PISAREK
Lekcja 2 A
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Expressing Numbers in English

CARDINAL NUMBERS
100 a/one hundred
101 a hundred and one
200 two hundred - no “s”!!!
1,000 a/one thousand
2,000 two thousand - no “s”!!!
100,000 a/one hundred thousand
355,645 three hundred (and) fifty five thousand, six hundred (and) forty five
1,000,000 a/one million
2,000,000 two million - no “s”!!!
1,000,000,000 a/one billion
Note: In British English, a billion used to be equivalent to a million million (i.e. 1,000,000,000,000), while in American English it
has always equated to a thousand million (i.e. 1,000,000,000). British English has now adopted the American figure, though, so
that a billion equals a thousand million in both varieties of English.
In British English we say “and” before the tens in large numbers. This is left out in US English.
465 four hundred (and) sixty-five
A comma is often written to separate the thousands in numbers over 999.
3,986 three thousand nine hundred and eighty-six.

½ a half

FRACTIONS
¾ three-quarters
1 one and two-thirds
DECIMAL FRACTIONS
In British and US English, a point is used when writing decimals, not a comma.
6.9
six point nine
0 is pronounced 'oh' after the point and 'nought' before the point in British English. It is 'zero' or 'oh' in US English.
8.07
eight point oh seven (British English)
eight point zero seven (US English)
0.6
nought point six (British English)
zero point six or point six (US English)
The numbers after the point are pronounced individually.
24.35 twenty-four point three five
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SJO PW - Język ANGIELSKI ogólnotechniczny, Poziom B2
Lekcja 2 A
Opracowanie: AGNIESZKA PISAREK
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MATHEMATICAL SYMBOLS
0.94
START
a
5
log3(81) = 4
73
5,345,697
90º
n + 7 > 15
8
dy
=
FINISH
n - a number
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SJO PW - Język ANGIELSKI ogólnotechniczny, Poziom B2
Opracowanie: AGNIESZKA PISAREK
Lekcja 2 A
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TEST A
NAME _____________________
TOTAL SCORE _____ /12
How do we say the following?
a. 0.25
b. ¾
c. 7,395
d. 6x8=48
e. 28 : 7
f. 5²
g. √ 9
h. a ∈ B
i.
j. ≤
k. 3!
l. log2(8) = 3
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TEST B
NAME _____________________
TOTAL SCORE _____ /12
How do we say the following?
a. √ 9
b. a ∈ B
c. 0.25
d.
e. ≤
f. 6x8=48
g. 28 : 7
h. 5²
i. ¾
j. 3!
k. log2(8) = 3
l. 7,395
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