
12.1 The Arithmetic of Equations
... number of representative particles, it also tells you the number of moles. • In the synthesis of ammonia, one mole of nitrogen molecules reacts with three moles of hydrogen molecules to form two moles of ...
... number of representative particles, it also tells you the number of moles. • In the synthesis of ammonia, one mole of nitrogen molecules reacts with three moles of hydrogen molecules to form two moles of ...
Averaging, Errors and Uncertainty
... Errors are quantified by associating an uncertainty with each measurement. For example, the best estimate of a length is 2.59cm, but due to uncertainty, the length might be as small as 2.57cm or as large as 2.61cm. can be expressed with its uncertainty in two different ways: 1. Absolute Uncer ...
... Errors are quantified by associating an uncertainty with each measurement. For example, the best estimate of a length is 2.59cm, but due to uncertainty, the length might be as small as 2.57cm or as large as 2.61cm. can be expressed with its uncertainty in two different ways: 1. Absolute Uncer ...
Fractions and Decimals - MakingMathsMarvellous
... 1650 BC). In the seventh century AD the method of writing fractions as we write them now was invented in India, but without the fraction bar (vinculum), which was introduced by the Arabs. Fractions were widely in use by the 12th century. The word ‘cent’ comes from the Latin word ‘centum’ meaning ‘on ...
... 1650 BC). In the seventh century AD the method of writing fractions as we write them now was invented in India, but without the fraction bar (vinculum), which was introduced by the Arabs. Fractions were widely in use by the 12th century. The word ‘cent’ comes from the Latin word ‘centum’ meaning ‘on ...
Dividing Decimal Numbers
... Add, subtract, multiply, and divide with decimals; add with negative integers; subtract positive integers from negative integers; and verify the reasonableness of the results. Demonstrate proficiency with division, including division with positive decimals and long division with multidigit divisors. ...
... Add, subtract, multiply, and divide with decimals; add with negative integers; subtract positive integers from negative integers; and verify the reasonableness of the results. Demonstrate proficiency with division, including division with positive decimals and long division with multidigit divisors. ...
students - Schaubroeck:Math
... Lessons 1-6, except now use the Lucas numbers instead of the Fibonacci numbers. Carefully record your results in your math journal. Some questions you could ask are: Do Lucas numbers follow the odd, odd, even pattern, or something similar? Does the golden ratio show up when you take quotients of ...
... Lessons 1-6, except now use the Lucas numbers instead of the Fibonacci numbers. Carefully record your results in your math journal. Some questions you could ask are: Do Lucas numbers follow the odd, odd, even pattern, or something similar? Does the golden ratio show up when you take quotients of ...
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.