math Club - Class 2 Discussion
... Division by 2 If the last digit is divisible by 2, then the whole number is divisible by 2 Division by 4 If the last two digits are divisible by 4, then the whole number is divisible by 4 Division by 8 If the last three digits are divisible by 8, then the whole number is divisible by 8 ...
... Division by 2 If the last digit is divisible by 2, then the whole number is divisible by 2 Division by 4 If the last two digits are divisible by 4, then the whole number is divisible by 4 Division by 8 If the last three digits are divisible by 8, then the whole number is divisible by 8 ...
Rationalizing the Denominator Martin
... These are terms with the same variables raised to the same powers. They can be combined through addition and subtraction. Similarly, we can work with the concept of “like” radicals to combine radicals with the same radicand. Like radicals are radicals with the same index and the same radicand. Like ...
... These are terms with the same variables raised to the same powers. They can be combined through addition and subtraction. Similarly, we can work with the concept of “like” radicals to combine radicals with the same radicand. Like radicals are radicals with the same index and the same radicand. Like ...
Subtracting Mixed Numbers
... The Process: • Use the least common multiple to write equivalent fractions if the denominators are not the same. • Subtract numerators. If you cannot subtract numerators, then rename the first mixed number. • Subtract whole numbers. • Simplify. ...
... The Process: • Use the least common multiple to write equivalent fractions if the denominators are not the same. • Subtract numerators. If you cannot subtract numerators, then rename the first mixed number. • Subtract whole numbers. • Simplify. ...
Name
... Remember, a redox reaction (basic) is balanced like an acidic redox reaction. The half reactions are pulled out. The atoms are balanced as is. Water is used to balance the number of oxygens, hydrogen ions are used to balance the number of H’s. Electrons are used to balance charge. The reactions are ...
... Remember, a redox reaction (basic) is balanced like an acidic redox reaction. The half reactions are pulled out. The atoms are balanced as is. Water is used to balance the number of oxygens, hydrogen ions are used to balance the number of H’s. Electrons are used to balance charge. The reactions are ...
UNIT 7: FRACTIONS I 7.1 What are fractions? *A fraction is used to e
... Exercise: Divide and express each fraction as a decimal number. Then compare them( > greater than or < less than). ...
... Exercise: Divide and express each fraction as a decimal number. Then compare them( > greater than or < less than). ...
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.