Seventh Grade Math

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When we study Seventh Grade Math, we come across number system. In this chapter we will get the detailed knowledge about the types of numbers and their properties.

We start the concept with the study of the natural numbers. All the numbers which start from 1, 2, 3, 4, . . . . . . . . . upto infinite are called natural numbers. We say that the natural numbers are the counting numbers. We observe that each natural number has the successor , which we get by adding 1 to the given number. In the same way each natural number except 1 has a predecessor, which we get be subtracting 1 from the given number.

Now we come to the whole numbers. These numbers are used for measurement of the units. Thus we start whole numbers from 0. All the whole numbers have successors as natural numbers and leaving 0, each number has the predecessor too. Now we look at the Integers. Integers are the series of numbers which start from minus infinite and goes upto + infinite. All the numbers of the series can be expressed on the number line and we observe that the middle most number of the  series of integers in 0. Thus we say that the digits that exist on the right side of the  number 0 are positive numbers and the numbers which exist at the left side of the  number line are all negative numbers. Further we also observe that in the series of integers, all the numbers have their successor and the predecessors.

To learn about the  Measure Of Central Tendency, which is the topic of statistics, we can take help of math online tutors. It is the part of the curriculum of grade 8 of the Icse Syllabus 2013.