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Quiz : Type the difference obtained on subtracting the following decimals. 
1. 3.9 − 2.1 Answer: 1.839 − 21 = 18
There is 1 decimal place in the numbers being subtracted.
So the difference must have 1 decimal place.
Thus, 3.9 − 2.1 = 1.8
2. 47.2 − 22.3 Answer: 24.9 472 − 223 = 249
There is 1 decimal place in the numbers being subtracted.
So the difference must have 1 decimal place..
Thus, 47.2 − 22.3 = 24.9
3. 0.32 − 0.11 Answer: 0.2132 − 11 = 21
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 0.32 − 0.11 = 0.21
4. 2.91 − 1.03 Answer: 1.88291 − 103 = 188
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 2.91 − 1.03 = 1.88
5. 56.80 − 34.00 Answer: 22.805680 − 3400 = 2280
There are 2 decimal places in the numbers being subtracted.
So the difference must have 2 decimal places.
Thus, 56.80 − 34.00 = 22.80
Try the Quiz : Arithmetic Homework Help : Decimal Subtraction
