The following Topics and Sub-Topics are covered in this chapter and are available on MSVgo:
In previous classes, we explored numbers in different ways, for instance, rational numbers, whole numbers, integers, multiples, finding factors and more. Here we will deal with some new concepts and tricks to make playing with numbers more exciting and fun.
When we write numbers in general form, we multiply individual digits with their corresponding place values and then add them together.
You have studied the rules of divisibility. Here, we shall understand the reasons justifying these rules.
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In this chapter, we understood that we could write numbers in general form like a two-digit number PQ = 10 x P + Q. Similarly, we can find the general form 3-digit number, 4-digit number and more.
We also learned that the general form of numbers helps explain the tests of divisibility and solving puzzles or playing with numbers.