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Slide 1
ENG 205 CE-ME-MECE-MSE NUMBERS AND CALCULATIONS
Slide 2
VOCABULARY
Slide 3
METRIC (adjective): Related to the system using metre and
kilogram Metric system is used all around the world, however it is
not used in the US.
Slide 4
IMPERIAL (adjective): Related to the system using pounds and
inches British people use both measurement systems, metric and
imperial.
Slide 5
ZERO/NOUGHT(noun): The number 0 It was ten degrees below zero
last night.
Slide 6
WHOLE NUMBER (adjective+noun): A natural number that is
positive or negative 2, -2 and 0 are whole numbers.
Slide 7
DECIMAL NUMBER (adjective+noun): A representation of a real
number using a decimal point. 0.2 is a decimal number.
Slide 8
ROUND UP (verb+preposition): To raise a number to the nearest
number You can round up 0.063 to 0.07.
Slide 9
NEGLIGIBLE (adjective): Unimportant and small The restaurant
was so cheap. We paid a negligible amount of money.
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FRACTION (noun): A division of a number 5/8 is a fraction.
Slide 11
ROUNDING ERROR (adjective+noun): A mistake of calculation that
results from rounding off numbers to a convenient number of
decimals The error in the calculation was a rounding error.
0.02930.03
Slide 12
EQUAL (TO) (verb): The symbol to express having the same value.
One pound is roughly equal to two dollars. =
Slide 13
ADDITION (noun): The process of adding two or more numbers
together to find their total. There are four ways to express
addition: 5+10=15 1.Five added to ten is fifteen. 2. Five plus ten
is fifteen. 3. The sum of five and ten is fifteen. 4. Add five and
ten together and you get fifteen.
Slide 14
SUBTRACTION (noun): The act of taking a number or amount away
from another number or amount There are two ways to express
subtraction: 12-2=10 1.Two subtracted from twelve is ten. 2. Twelve
minus two is ten.
Slide 15
MULTIPLICATION (noun): The act of adding a number to itself a
certain number of times There are three ways to express
multiplication: 3x2=6 1.Three multiplied by two is six. 2. Three
times two is six. 3. Multiply three and two together and you get
six.
Slide 16
DIVISION (noun): The act of finding how many times one number
is contained in another There are two ways to express division:
182=9 1.Eighteen divided by two is nine. 2. Nine divides into
eighteen two times.
Slide 17
SQUARE (verb/noun): The number obtained when you multiply a
number by itself There are two ways to express the square of a
number: 7 =49 1. The square of seven is forty-nine. 2. Square seven
and you get forty-nine. 5
Slide 18
SQUARE ROOT (noun): A number that when multiplied by itself
gives a certain number There are two ways to express the square
root of a number: 49 =7 1. The square root of forty-nine is seven.
2. Seven is the square root of forty-nine.
Slide 19
Say the numbers and calculations in words.
Slide 20
4.567 mm= Four point five six seven milimeters 1/1000 inch= One
thousandth of an inch 0.08= Zero (nought) point zero (nought) eight
6=36 The square of six is thirty-six. 81=9 The square root of
eighty-one is nine.
Slide 21
20 + 10=30 Twenty plus ten equals to thirty. 15 - 4=11 Fifteen
minus four equals to eleven. 3 x 9 =27 Three multiplied by nine
equals to twenty-seven. 455=8 Forty-five divided by five is eight.
1/20 Twenty to one