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## Understanding 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=10, Mode=gridSq

Make an subtraction picture. Then fill in the blank. Color the squares by clicking on them.

 1.   7 - 2 = ? 7 - 2 = 2.   6 - 5 = ? 6 - 5 =

### Complexity=20, Mode=gridSq

Make an subtraction picture. Then fill in the blank. Color the squares by clicking on them.

 1.   9 - 3 = ? 9 - 3 = 2.   11 - 1 = ? 11 - 1 =

### Complexity=10, Mode=numLine

Fill in the blanks.

 1.   10 - 5 = 2.   6 - 3 =

### Complexity=20, Mode=numLine

Fill in the blanks.

 1.   18 - 10 = 2.   16 - 6 =

### Complexity=10, Mode=gridSq

Make an subtraction picture. Then fill in the blank. Color the squares by clicking on them.

17 - 2 = ?

7 - 2 =
Solution
When you start from 7 and count backwards to 2 while taking things away, you are left with 5.
26 - 5 = ?

6 - 5 =
Solution
When you start from 6 and count backwards to 5 while taking things away, you are left with 1.

### Complexity=20, Mode=gridSq

Make an subtraction picture. Then fill in the blank. Color the squares by clicking on them.

19 - 3 = ?

9 - 3 =
Solution
When you start from 9 and count backwards to 3 while taking things away, you are left with 6.
211 - 1 = ?

11 - 1 =
Solution
When you start from 11 and count backwards to 1 while taking things away, you are left with 10.

### Complexity=10, Mode=numLine

Fill in the blanks.

110 - 5 =
Solution

Starting from 10 and taking 5 steps back, you get to 5.
26 - 3 =
Solution

Starting from 6 and taking 3 steps back, you get to 3.

### Complexity=20, Mode=numLine

Fill in the blanks.

118 - 10 =
Solution

Starting from 18 and taking 10 steps back, you get to 8.