Mark Twain I.S. 239 Name . 6L Due October 12, 2009 Exam #2
... Algebraic Expressions, Properties, Divisibility, and Prime Factorization Part 1 – Multiple Choice 1. Which of the following correctly demonstrates the Identity Property of Addition? (a) 9 + 9 = 18 (b) 9 + 5 = 5 + 9 (c) 9 + 0 = 9 (d) 3 + (9 + 5) = (3 + 9) + 5 ...
... Algebraic Expressions, Properties, Divisibility, and Prime Factorization Part 1 – Multiple Choice 1. Which of the following correctly demonstrates the Identity Property of Addition? (a) 9 + 9 = 18 (b) 9 + 5 = 5 + 9 (c) 9 + 0 = 9 (d) 3 + (9 + 5) = (3 + 9) + 5 ...
Prime and Composite Numbers Prime and Composite Numbers
... 2. Have students build as many arrays as they can for the numbers 4, 5, and 6. Have them record their data. Ask: Which of these numbers is prime? Elicit that 5 is prime. Explain that 4 and 6 are called composite numbers, because they have more than two factors. Discuss how the number of arrays that ...
... 2. Have students build as many arrays as they can for the numbers 4, 5, and 6. Have them record their data. Ask: Which of these numbers is prime? Elicit that 5 is prime. Explain that 4 and 6 are called composite numbers, because they have more than two factors. Discuss how the number of arrays that ...
2005 Mississippi Mu Alpha Theta Inter-School Test
... 1. Let x, y, and z be three prime numbers such that x + y = z. If 1 < x < y, find x. 2. In a certain school, the ratio of girls to boys is 9 to 8. If the girls’ average age is 12 and the boys’ average age is 11, find the average age of all children in the school. 3. Let a = xy, b = xz, and c = yz su ...
... 1. Let x, y, and z be three prime numbers such that x + y = z. If 1 < x < y, find x. 2. In a certain school, the ratio of girls to boys is 9 to 8. If the girls’ average age is 12 and the boys’ average age is 11, find the average age of all children in the school. 3. Let a = xy, b = xz, and c = yz su ...
Algebra - Basic Definitions
... Exponents make it easier to write and use many multiplications Example: y4z2 is easier than y × y × y × y × z × z, or even yyyyzz ...
... Exponents make it easier to write and use many multiplications Example: y4z2 is easier than y × y × y × y × z × z, or even yyyyzz ...
Math 72 Course Pack
... All square roots of "a" If "a" is a positive, real number, a is the positive square root of "a" - a is the negative square root of "a" Note the difference between word form and symbol form: 1. "the square roots of x" ...
... All square roots of "a" If "a" is a positive, real number, a is the positive square root of "a" - a is the negative square root of "a" Note the difference between word form and symbol form: 1. "the square roots of x" ...
3 sig figs - Fort Bend ISD
... up so that one number is to its left Step #3: Count how many places you bounce the decimal point Step #4: Re-write in the form M x 10n ...
... up so that one number is to its left Step #3: Count how many places you bounce the decimal point Step #4: Re-write in the form M x 10n ...
Adding Integers - Schoolwires.net
... Use a positive sign for deposits and a negative sign for withdrawals. Group integers with same signs. Add integers within each group. 270 > 198; use the sign of 270. ...
... Use a positive sign for deposits and a negative sign for withdrawals. Group integers with same signs. Add integers within each group. 270 > 198; use the sign of 270. ...
FACTORING: TRINOMIALS a = 1
... A square number is a number that you get by multiplying a number by itself. These numbers can be whole numbers, fractions, decimals, etc A perfect square number is when you have a whole number that is squared. You always end up with whole numbers as answers. The opposite of “squaring a number” is to ...
... A square number is a number that you get by multiplying a number by itself. These numbers can be whole numbers, fractions, decimals, etc A perfect square number is when you have a whole number that is squared. You always end up with whole numbers as answers. The opposite of “squaring a number” is to ...
Addition
Addition (often signified by the plus symbol ""+"") is one of the four elementary, mathematical operations of arithmetic, with the others being subtraction, multiplication and division.The addition of two whole numbers is the total amount of those quantities combined. For example, in the picture on the right, there is a combination of three apples and two apples together; making a total of 5 apples. This observation is equivalent to the mathematical expression ""3 + 2 = 5"" i.e., ""3 add 2 is equal to 5"".Besides counting fruits, addition can also represent combining other physical objects. Using systematic generalizations, addition can also be defined on more abstract quantities, such as integers, rational numbers, real numbers and complex numbers and other abstract objects such as vectors and matrices.In arithmetic, rules for addition involving fractions and negative numbers have been devised amongst others. In algebra, addition is studied more abstractly.Addition has several important properties. It is commutative, meaning that order does not matter, and it is associative, meaning that when one adds more than two numbers, the order in which addition is performed does not matter (see Summation). Repeated addition of 1 is the same as counting; addition of 0 does not change a number. Addition also obeys predictable rules concerning related operations such as subtraction and multiplication.Performing addition is one of the simplest numerical tasks. Addition of very small numbers is accessible to toddlers; the most basic task, 1 + 1, can be performed by infants as young as five months and even some non-human animals. In primary education, students are taught to add numbers in the decimal system, starting with single digits and progressively tackling more difficult problems. Mechanical aids range from the ancient abacus to the modern computer, where research on the most efficient implementations of addition continues to this day.