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Arithmetic Homework Help : Decimal Subtraction

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


1.    6.1
− 1.5
Answer: 4.6
61 − 15 = 46
There is 1 decimal place in the numbers being subtracted.
So the difference must have 1 decimal place.
Thus, 6.1 − 1.5 = 4.6

2.    62.6
− 37.3
Answer: 25.3
 626 − 373 = 253 
There is 1 decimal place in the numbers being subtracted.
So the difference must have 1 decimal place..
Thus, 62.6 − 37.3 = 25.3

3.    0.68
− 0.39 
Answer: 0.29
68 − 39 = 29 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 0.68 − 0.39 = 0.29


4.    7.1
− 4.71
Answer: 2.39
710 − 471 = 239 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 7.1 − 4.71 = 2.39

5.    65.03
− 30.02
Answer: 35.01
6503 − 3002 = 3501 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 65.03 − 30.02 = 35.01

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