SIG FIGS, SCIENTIFIC NOTATION, UNITS, ETC Why pay attention to
... 2. When add/sub the column of sig figs is kept. Adding and subtracting can change the number of sig figs. 3. Unless otherwise specified, we’ll use three sig figs for everything. 4. In scientific notation, all numbers are always significant! 5. Usually you keep at least one extra sig fig for all math ...
... 2. When add/sub the column of sig figs is kept. Adding and subtracting can change the number of sig figs. 3. Unless otherwise specified, we’ll use three sig figs for everything. 4. In scientific notation, all numbers are always significant! 5. Usually you keep at least one extra sig fig for all math ...
3 ILL Processing Unit
... A single lexical representation, which is a subset of the lexical representations defined by ISO 8601, is allowed. This lexical representation is the ISO 8601 extended format CCYY-MM-DDThh:mm:ss.sss where “CC” represents the century , “YY” the year, “MM” the month, and “DD” the day, preceded by an o ...
... A single lexical representation, which is a subset of the lexical representations defined by ISO 8601, is allowed. This lexical representation is the ISO 8601 extended format CCYY-MM-DDThh:mm:ss.sss where “CC” represents the century , “YY” the year, “MM” the month, and “DD” the day, preceded by an o ...
N2 Negative numbers
... For example, –3 is an integer. –3 is read as ‘negative three’. This can also be written as –3 or (–3). It is 3 less than 0. ...
... For example, –3 is an integer. –3 is read as ‘negative three’. This can also be written as –3 or (–3). It is 3 less than 0. ...
UNIT 2 LESSONS
... What Are You Rounding to? When rounding a number, you first need to ask: what are you rounding it to?Numbers can be rounded to the nearest ten, the nearest hundred, the nearest thousand, and so on. Consider the number 4,827. ...
... What Are You Rounding to? When rounding a number, you first need to ask: what are you rounding it to?Numbers can be rounded to the nearest ten, the nearest hundred, the nearest thousand, and so on. Consider the number 4,827. ...
Common Denominator
... both of the denominators share at least one factor that is not the number 1 – For example, if the denominators are 4 and 7, then a common denominator is 28. – 28 shares the factors 1, 2 and 4 with the number 4, and the factors 1 and 7 with the number 7. ...
... both of the denominators share at least one factor that is not the number 1 – For example, if the denominators are 4 and 7, then a common denominator is 28. – 28 shares the factors 1, 2 and 4 with the number 4, and the factors 1 and 7 with the number 7. ...
Chapter 9 Math Notes
... 1. Find the LCM (least common multiple) of the denominators. 2. Write equivalent fractions using the LCM. 3. Compare the numerators and write the fractions in order. **If the fraction is a mixed number or whole number, don’t forget to compare the whole numbers! ***Always write your answer using the ...
... 1. Find the LCM (least common multiple) of the denominators. 2. Write equivalent fractions using the LCM. 3. Compare the numerators and write the fractions in order. **If the fraction is a mixed number or whole number, don’t forget to compare the whole numbers! ***Always write your answer using the ...
Arithmetic
Arithmetic or arithmetics (from the Greek ἀριθμός arithmos, ""number"") is the oldest and most elementary branch of mathematics. It consists of the study of numbers, especially the properties of the traditional operations between them—addition, subtraction, multiplication and division. Arithmetic is an elementary part of number theory, and number theory is considered to be one of the top-level divisions of modern mathematics, along with algebra, geometry, and analysis. The terms arithmetic and higher arithmetic were used until the beginning of the 20th century as synonyms for number theory and are sometimes still used to refer to a wider part of number theory.