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2 8 3 4 8
(c) 700 + 4 + + (d) 5000 + 80 + 5 + + +
100 1000 10 100 1000
7 8
(e) 4000 + 800 + +
100 1000
(f ) 9 hundreds + 8 ones + 9 tenths + 3 hundredths
(g) 6 thousands + 8 tens + 3 ones + 9 thousandths
like aND uNlike Decimals
Like Decimals
Decimals having the same number of decimal places are called like decimals.
example:
(a) 0.9, 8.6, 11.5, 354.7 are like decimals as they have one decimal place.
(b) 0.47, 3.73, 21.40, 327.00 are like decimals as they have two decimal places.
(c) 8.109, 3.756, 92.480, 381.700 are like decimals as they have three decimal places.
unlike Decimals
Decimals having different number of decimal places are called unlike decimals.
example: 0.64, 26.8 and 124.568 are unlike decimals as they have different number of
decimal places.
example 1: Identify the different group of like decimals in the following:
0.05, 0.14, 12.1, 9.9, 2.145, 6.51, 2.294
Solution: 0.05, 0.14, 6.51 have 2 decimal places.
So, it is a group of like decimals.
Similarly, 12.1 and 9.9 have 1 decimal place.
So, it is a group of like decimals.
Again, 2.145 and 2.294 have 3 decimal places.
So, it is another group of like decimals.
converting unlike Decimals to like Decimals
To convert unlike decimals to like decimals, follow the following steps:
Step 1: Identify the decimal number having the largest number of decimal places.
Step 2: Add zeros at the extreme right of the decimal part of each remaining decimal
number to make the equal number of digits in the decimal part.
teacher’s Explain to the children, with the help of examples, that the expanded form of any decimal number can also be
tip expressed as a sum of whole numbers and decimal numbers as per their place values, like
32.759 = 30 + 2 + 0.7 + 0.05 + 0.009.
Mathematics-5 109

