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Arithmetic Homework Help : Decimal Subtraction

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Quiz : Type the difference obtained on subtracting the following decimals.


1.    5.8
− 2.3
Answer: 3.5
58 − 23 = 35
There is 1 decimal place in the numbers being subtracted.
So the difference must have 1 decimal place.
Thus, 5.8 − 2.3 = 3.5

2.    27.2
− 10.9
Answer: 16.3
 272 − 109 = 163 
There is 1 decimal place in the numbers being subtracted.
So the difference must have 1 decimal place..
Thus, 27.2 − 10.9 = 16.3

3.    0.33
− 0.17 
Answer: 0.16
33 − 17 = 16 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 0.33 − 0.17 = 0.16


4.    3.84
− 1.73
Answer: 2.11
384 − 173 = 211 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 3.84 − 1.73 = 2.11

5.    75.02
− 25.39
Answer: 49.63
7502 − 2539 = 4963 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 75.02 − 25.39 = 49.63

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