In division as the inverse of multiplication, let a and b be two whole numbers. Dividing a by b means finding a whole number which when multiplied by b gives a and we writea ÷ b = c.
Thus, a ÷ b = c or a = b × c
For example:
Divide 28 by 7 means finding a whole number which when multiplied by 7 gives 28. Clearly, such a number is 4. So, we write 28 ÷ 7 = 4.
Similarly, we have
12 ÷ 4 = 3, since 4 × 3 = 12
35 ÷ 5 = 7, since 5 × 7 = 35
2 ÷ 1 = 2, since 2 × 1 = 2
15 ÷ 15 = 1, since 15 × 1 = 15
42 ÷ 6 = 7, since 6 × 7 = 42
Note:
If a and b are two whole numbers, then a ÷ b is also expressed as a/b.
Thus, a ÷ b = c or a = bc, which can also be written as
a/b = c or a = b × c.
Representation of Whole Numbers on Number Line
Division as The Inverse of Multiplication
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