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Arithmetic Homework Help : Decimal Subtraction

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


1.    5.2
− 1.9
Answer: 3.3
52 − 19 = 33
There is 1 decimal place in the numbers being subtracted.
So the difference must have 1 decimal place.
Thus, 5.2 − 1.9 = 3.3

2.    51.5
− 25.7
Answer: 25.8
 515 − 257 = 258 
There is 1 decimal place in the numbers being subtracted.
So the difference must have 1 decimal place..
Thus, 51.5 − 25.7 = 25.8

3.    0.62
− 0.43 
Answer: 0.19
62 − 43 = 19 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 0.62 − 0.43 = 0.19


4.    5.68
− 1.63
Answer: 4.05
568 − 163 = 405 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 5.68 − 1.63 = 4.05

5.    83.45
− 36.14
Answer: 47.31
8345 − 3614 = 4731 
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 83.45 − 36.14 = 47.31

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