
Adding and Subtracting Integers
... 31. Critical Thinking Explain how you could use a number line to show that -4 + 3 and 3 + (-4) have the same value. Which property of addition states that these sums are equivalent? ...
... 31. Critical Thinking Explain how you could use a number line to show that -4 + 3 and 3 + (-4) have the same value. Which property of addition states that these sums are equivalent? ...
Subtracting Integers 1.6
... (add -76 and 61) ANSWER: The diver is -15, so the diver is 15 feet below sea level. ...
... (add -76 and 61) ANSWER: The diver is -15, so the diver is 15 feet below sea level. ...
Standard Grade Mathematics Investigations
... Can you find a formula for the sum of the first n triangular numbers? What is the sum of the first 15 triangular numbers? ...
... Can you find a formula for the sum of the first n triangular numbers? What is the sum of the first 15 triangular numbers? ...
Module 3 Lesson 25 - Peoria Public Schools
... • Yes; we circled 2, 3, 5, and 7, and crossed off their multiples. We didn’t have to do fours, because the fours got crossed out when we crossed out multiples of 2. The same thing happened with the sixes, eights, nines, and tens. • So we had already crossed out 2 × 11, 3 × 11, all the way up to 9 × ...
... • Yes; we circled 2, 3, 5, and 7, and crossed off their multiples. We didn’t have to do fours, because the fours got crossed out when we crossed out multiples of 2. The same thing happened with the sixes, eights, nines, and tens. • So we had already crossed out 2 × 11, 3 × 11, all the way up to 9 × ...
Numeracy
... identifying common equivalent fractions practising to order unit fractions to tenths with explanation and modelling practising filling in missing decimals and fractions on a number line building understanding of distributive (Module 4) and associative laws (Tasmanian curriculum, p54) building unders ...
... identifying common equivalent fractions practising to order unit fractions to tenths with explanation and modelling practising filling in missing decimals and fractions on a number line building understanding of distributive (Module 4) and associative laws (Tasmanian curriculum, p54) building unders ...
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.