Grade 3 Math Flipchart
... mathematical models for: a) addition and subtraction of whole numbers form 0 through 1,000; b) multiplication using the basic facts through the 5s and the multiplication facts of the 10s; c) addition and subtraction of money Explanation of Indicator For example 5 dimes and 3 pennies, plus 11 dimes a ...
... mathematical models for: a) addition and subtraction of whole numbers form 0 through 1,000; b) multiplication using the basic facts through the 5s and the multiplication facts of the 10s; c) addition and subtraction of money Explanation of Indicator For example 5 dimes and 3 pennies, plus 11 dimes a ...
Step 2.
... Steps for Subtracting Mixed Numbers: Step 1. If the fractions of the mixed numbers have the same denominator, subtract them and reduce to lowest terms. Step 2. If the fractions do not have the same denominator, raise them to the denominator of the LCD, and subtract. Step 3. Subtract the whole number ...
... Steps for Subtracting Mixed Numbers: Step 1. If the fractions of the mixed numbers have the same denominator, subtract them and reduce to lowest terms. Step 2. If the fractions do not have the same denominator, raise them to the denominator of the LCD, and subtract. Step 3. Subtract the whole number ...
NSF Math Column Apr2011x
... from the 10. Hence 10 becomes 9 and the next digit changes to 10 as shown above. We repeat this process until the ones place becomes 10. At the end of this process we are left with the following: ...
... from the 10. Hence 10 becomes 9 and the next digit changes to 10 as shown above. We repeat this process until the ones place becomes 10. At the end of this process we are left with the following: ...
Divisibility
... Divisibility by 11 ( Study this method last – since it is not an obvious approach ) 1) Add every other digit beginning with the one’s digit ( one’s, hundred’s, ten-thousands,... ) 2) Add the remaining digits ( ten’s thousand’s, ... ) 3) If the first sum is less than the second one, add 11 to the fir ...
... Divisibility by 11 ( Study this method last – since it is not an obvious approach ) 1) Add every other digit beginning with the one’s digit ( one’s, hundred’s, ten-thousands,... ) 2) Add the remaining digits ( ten’s thousand’s, ... ) 3) If the first sum is less than the second one, add 11 to the fir ...
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.