Divisibility Rules For 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 and 14 Divisibility Rules – Number Divisible by 1 When we divide number 1, to another number, then we get result is a Whole number. In other words we can say that any number divided by 1 we get […]

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Mean Value – Word problems    In this lesson we will learn about mean. We will also learn how to find mean of given data and solve word problems on mean. How to calculate mean Example: (1)What is the mean of  1, 2, 5, and 4. Solution : Mean = Sum of observations/Number of observations the numbers […]

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                 Additive Inverse Definition: In mathematics, the additive inverse of a number is what we add to a number to create the sum of zero.  So in other words, we can say that the additive inverse of x is -x, which is equal and opposite in sign to it. […]

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Addition worksheet 10 to 100                        Solve following addition.                       1          22 + 12 =                       2.         78 + 23 =                       3.         68 + 34 =                       4.         88 + 93 =                       5.         85 + 73 =                       6.         19 + 65 =                       7.         66 + 54 =                       8.         47 + 91 […]

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         Rules – Addition of Integers There are two conditions when adding integers.  Rule 1: When integers have same sign. Rule 2: When integers have opposite sign. (a) When integers have same sign. (b) When integers have opposite sign. a. Integers having (same)positive sign. When we add two positive integers means both […]

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 Positive Integers on Number Line A number line shows positive integers on the right side of the zero.  We understand the concept in a better way with the help of examples.   Example: Below number line represents integer 4 an d 4 is a positive integer, so, 4 is right side of 0.       […]

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