Question

Which of these is not an equivalent decimal?


(a) 2.06 (b) 2.060 (c) 2.0600 (d) 20.60​

Answer 1

20.60 is not an equivalent decimal among 2.06, 2.060, 2.0600 and 20.60

Given:

(a) 2.06 (b) 2.060 (c) 2.0600 (d) 20.60

To find:

Which of these is not an equivalent decimal?

Solution:

We know that the zeros in the right side of the significant digit after decimal point have no significance.

Thus,

2.06 = 2.060 = 2.0600

all are equal.

In simplest form these are written as 2.06

i.e. all these have one significant digit before decimal and two after decimal point.

But,

20.60 is different from all these decimal numbers.

As it have two significant digit before decimal and one after decimal point.

Thus,

20.60 is not an equivalent decimal among (a) 2.06 (b) 2.060 (c) 2.0600 (d) 20.60

Option (d) is correct.

Learn more:

1) changing these unlike decimals into like decimals: 3.8 ; 493.103 ; 81.92 ; 43.1

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2) 2/3, Write any three equivalent rational numbers to te given equation.

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