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## Decimal Subtraction - Sample Math Practice Problems

The math problems below can be generated by MathScore.com, a math practice program for schools and individual families. References to complexity and mode refer to the overall difficulty of the problems as they appear in the main program. In the main program, all problems are automatically graded and the difficulty adapts dynamically based on performance. Answers to these sample questions appear at the bottom of the page. This page does not grade your responses.

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### Complexity=1, Mode=1

Subtract.

1.
 0.9- 0.6
2.
 2.7- 1.4

### Complexity=10, Mode=1

Subtract.

1.
 5.9- 1.6
2.
 12.5- 4.6

### Complexity=5, Mode=2

Subtract.

1.
 4.19- 2.50
2.
 6.9- 3.18

### Complexity=15, Mode=2

Subtract.

1.
 20.43- 6.75
2.
 6.35- 1.60

### Complexity=20, Mode=3

Subtract.

1.
 32.097- 18.415
2.
 16.022- 12.924

### Complexity=100, Mode=4

Subtract.

1.
 164.3711- 93.6674
2.
 59.1462- 39.3704

### Complexity=200, Mode=5

Subtract.

1.
 123.95116- 97.41696
2.
 216.75645- 94.91067

### Complexity=500, Mode=6

Subtract.

1.
 338.611863- 313.838260
2.
 831.283052- 415.815538

## Answers

### Complexity=1, Mode=1

Subtract.

#Correct AnswerYour Answer
1
 0.9- 0.6
#Correct AnswerYour Answer
2
 2.7- 1.4

### Complexity=10, Mode=1

Subtract.

#Correct AnswerYour Answer
1
 5.9- 1.6
#Correct AnswerYour Answer
2
 12.5- 4.6

### Complexity=5, Mode=2

Subtract.

#Correct AnswerYour Answer
1
 4.19- 2.50
#Correct AnswerYour Answer
2
 6.9- 3.18
Solution
First, align the decimal points.
Then, add zeroes to make it easier to subtract.
```  6.90
-3.18
3.72
```

### Complexity=15, Mode=2

Subtract.

#Correct AnswerYour Answer
1
 20.43- 6.75
#Correct AnswerYour Answer
2
 6.35- 1.60

### Complexity=20, Mode=3

Subtract.

#Correct AnswerYour Answer
1
 32.097- 18.415
#Correct AnswerYour Answer
2
 16.022- 12.924

### Complexity=100, Mode=4

Subtract.

#Correct AnswerYour Answer
1
 164.3711- 93.6674
#Correct AnswerYour Answer
2
 59.1462- 39.3704

### Complexity=200, Mode=5

Subtract.

#Correct AnswerYour Answer
1
 123.95116- 97.41696
#Correct AnswerYour Answer
2
 216.75645- 94.91067

### Complexity=500, Mode=6

Subtract.

#Correct AnswerYour Answer
1
 338.611863- 313.838260
#Correct AnswerYour Answer
2
 831.283052- 415.815538
Learn more about our online math practice software. "MathScore works." - John Cradler, Educational Technology Expert © Copyright 2010 Accurate Learning Systems Corp. All rights reserved. 