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Arithmetic Homework Help : Decimal Subtraction

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


1.    4.0
− 2.4
Answer: 1.6
40 − 24 = 16
There is 1 decimal place in the numbers being subtracted.
So the difference must have 1 decimal place.
Thus, 4.0 − 2.4 = 1.6

2.    85.1
− 35.2
Answer: 49.9
 851 − 352 = 499 
There is 1 decimal place in the numbers being subtracted.
So the difference must have 1 decimal place..
Thus, 85.1 − 35.2 = 49.9

3.    0.43
− 0.26 
Answer: 0.17
43 − 26 = 17 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 0.43 − 0.26 = 0.17


4.    7.04
− 4.6
Answer: 2.44
704 − 460 = 244 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 7.04 − 4.6 = 2.44

5.    88.18
− 47.32
Answer: 40.86
8818 − 4732 = 4086 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 88.18 − 47.32 = 40.86

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