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Arithmetic Homework Help : Decimal Subtraction

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


1.    6.4
− 3.7
Answer: 2.7
64 − 37 = 27
There is 1 decimal place in the numbers being subtracted.
So the difference must have 1 decimal place.
Thus, 6.4 − 3.7 = 2.7

2.    46.0
− 15.3
Answer: 30.7
 460 − 153 = 307 
There is 1 decimal place in the numbers being subtracted.
So the difference must have 1 decimal place..
Thus, 46.0 − 15.3 = 30.7

3.    0.75
− 0.43 
Answer: 0.32
75 − 43 = 32 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 0.75 − 0.43 = 0.32


4.    7.59
− 3.43
Answer: 4.16
759 − 343 = 416 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 7.59 − 3.43 = 4.16

5.    89.41
− 40.09
Answer: 49.32
8941 − 4009 = 4932 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 89.41 − 40.09 = 49.32

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