Table of Contents
Decomposing Numbers Mazes:
Pages 2 - 4
Decomposing Numbers Mazes: Answer Keys
Pages 5 - 7
Create Your Own: Decomposing Numbers
Maze And Rubric
Pages 8 - 9
3 mazes are provided to help students practice
decomposing numbers. If you are wanting to
challenge some of your students, have them
create their own maze. This “Create Your Own
Maze” can be used repeatedly.
Place Value: Mental Math Mazes
Decomposing Numbers
Help the girl find her hat by shading in all of the expressions that equal 34!
20 + 20
30 + 5
30 + 4
10 + 10 + 10
21 + 9 + 7
15 + 15 + 2
20 + 5 + 7
20 + 10 + 4
10 + 15 + 4
10 + 30
20 + 4 + 4
10 + 15 + 14
10 + 24
12 + 12 + 12
20 + 5 + 6
30 + 2 + 1
3 + 7 + 14
10 + 10 + 14
30 + 2 + 2
15 + 15 + 4
10 + 4
25 + 19
11 + 11 + 11
20 + 10 + 8
12 + 12 + 10
12 + 14
20 + 14
10 + 10
+ 10 + 4
17 + 17
3 + 7 + 24
20 + 6 + 6
25 + 5 + 4
5 + 15 + 4
32 + 4
7 + 7 + 10
7 + 7 + 24
20 + 5
+5+4
10 + 7 + 17
7 + 7 + 20
8+2+4
4 + 6 + 20
12 + 12 + 20
9 + 9 + 10
15 + 10 + 9
23 + 7 + 3
19 + 1 + 4
30 + 3 + 1
22 + 8 + 4
12 + 8 + 14
30 + 2
© 2016 Kalena Baker: Teaching Made Practical. All rights reserved.
Place Value: Mental Math Mazes
Decomposing Numbers
Help the boy find his hat by shading in all of the expressions that equal 57!
50 + 7
30 + 23 + 3
49 + 8
53 + 4
30 + 27
30 + 20 + 7
50 + 3 + 4
12 + 8 + 37
21 + 9 + 7
10 + 41 + 6
20 + 20 + 7
34 + 10 + 7
30 + 20 + 17
52 + 6
10 + 10 + 10
+ 10 + 10 + 7
25 + 25 + 4
10 + 10 + 27
47 + 20
43 + 7
23 + 27 + 7
50 + 1 + 6
20 + 33 + 4
20 + 20
+ 10 + 7
8 +7 + 37
50 + 2 + 5
43 + 7 + 7
8 + 40 + 7
10 + 47
30 + 17
11 + 39 + 7
40 + 17
23 + 20 + 7
55 + 2
17 + 17 + 17
37 + 20
40 + 10 + 7
37 + 10
15 + 15 + 27
24 + 27 + 6
25 + 25
+2+5
30 + 10 + 17
17 + 23 + 27
24 + 3 + 20
15 + 15 + 17
27 + 20
56 + 1
25 + 25 + 7
40 + 7
20 + 20 + 2
30 + 30
© 2016 Kalena Baker: Teaching Made Practical. All rights reserved.
Place Value: Mental Math Mazes
Decomposing Numbers
Help the girl find her hat by shading in all of the expressions that equal 85!
75 + 20
50 + 20 + 5
83 + 5
10 + 60 + 5
80 + 5
12 + 38 + 35
10 + 70 + 5
25 + 25
+ 35
20 + 30 + 5
25 + 25 +
25 + 10
20 + 20 +
20 + 20 + 5
32 + 63
45 + 10 + 30
65 + 30
42 + 42 + 1
80 + 2 + 3
40 + 40 + 2
10 + 75
50 + 30 + 5
20 + 50 + 15
62 + 18 + 5
35 + 35 + 5
80 + 2 + 2
50 + 25
41 + 54
45 + 40
41 + 44
26 + 24
+ 25
60 + 30
35 + 60
30 + 40 + 5
30 + 40 + 15
37 + 43 + 5
25 + 25
+ 25 + 5
20 + 20
+ 25 + 5
50 + 50
30 + 30 + 10
30 + 55
33 + 52
12 + 43 + 30
50 + 15 + 15
81 + 5
75 + 20
45 + 10 + 40
80 + 1 + 4
82 + 82
14 + 36 + 15
40 + 40 + 5
30 + 30
+ 20 + 5
25 + 60
© 2016 Kalena Baker: Teaching Made Practical. All rights reserved.
Place Value: Mental Math Mazes
Decomposing Numbers
Help the girl find her hat by shading in all of the expressions that equal 34!
20 + 20
30 + 5
30 + 4
10 + 10 + 10
21 + 9 + 7
15 + 15 + 2
20 + 5 + 7
20 + 10 + 4
10 + 15 + 4
10 + 30
20 + 4 + 4
10 + 15 + 14
10 + 24
12 + 12 + 12
20 + 5 + 6
30 + 2 + 1
3 + 7 + 14
10 + 10 + 14
30 + 2 + 2
15 + 15 + 4
10 + 4
25 + 19
11 + 11 + 11
20 + 10 + 8
12 + 12 + 10
12 + 14
20 + 14
10 + 10
+ 10 + 4
17 + 17
3 + 7 + 24
20 + 6 + 6
25 + 5 + 4
5 + 15 + 4
32 + 4
7 + 7 + 10
7 + 7 + 24
20 + 5
+5+4
10 + 7 + 17
7 + 7 + 20
8+2+4
4 + 6 + 20
12 + 12 + 20
9 + 9 + 10
15 + 10 + 9
23 + 7 + 3
19 + 1 + 4
30 + 3 + 1
22 + 8 + 4
12 + 8 + 14
30 + 2
© 2016 Kalena Baker: Teaching Made Practical. All rights reserved.
Place Value: Mental Math Mazes
Decomposing Numbers
Help the boy find his hat by shading in all of the expressions that equal 57!
50 + 7
30 + 23 + 3
49 + 8
53 + 4
30 + 27
30 + 20 + 7
50 + 3 + 4
12 + 8 + 37
21 + 9 + 7
10 + 41 + 6
20 + 20 + 7
34 + 10 + 7
30 + 20 + 17
52 + 6
10 + 10 + 10
+ 10 + 10 + 7
25 + 25 + 4
10 + 10 + 27
47 + 20
43 + 7
23 + 27 + 7
50 + 1 + 6
20 + 33 + 4
20 + 20
+ 10 + 7
8 +7 + 37
50 + 2 + 5
43 + 7 + 7
8 + 40 + 7
10 + 47
30 + 17
11 + 39 + 7
40 + 17
23 + 20 + 7
55 + 2
17 + 17 + 17
37 + 20
40 + 10 + 7
37 + 10
15 + 15 + 27
24 + 27 + 6
25 + 25
+2+5
30 + 10 + 17
17 + 23 + 27
24 + 3 + 20
15 + 15 + 17
27 + 20
56 + 1
25 + 25 + 7
40 + 7
20 + 20 + 2
30 + 30
© 2016 Kalena Baker: Teaching Made Practical. All rights reserved.
Place Value: Mental Math Mazes
Decomposing Numbers
Help the girl find her hat by shading in all of the expressions that equal 85!
75 + 20
50 + 20 + 5
83 + 5
10 + 60 + 5
80 + 5
12 + 38 + 35
10 + 70 + 5
25 + 25
+ 35
20 + 30 + 5
25 + 25 +
25 + 10
20 + 20 +
20 + 20 + 5
32 + 63
45 + 10 + 30
65 + 30
42 + 42 + 1
80 + 2 + 3
40 + 40 + 2
10 + 75
50 + 30 + 5
20 + 50 + 15
62 + 18 + 5
35 + 35 + 5
80 + 2 + 2
50 + 25
41 + 54
45 + 40
41 + 44
26 + 24
+ 25
60 + 30
35 + 60
30 + 40 + 5
30 + 40 + 15
37 + 43 + 5
25 + 25
+ 25 + 5
20 + 20
+ 25 + 5
50 + 50
30 + 30 + 10
30 + 55
33 + 52
12 + 43 + 30
50 + 15 + 15
81 + 5
75 + 20
45 + 10 + 40
80 + 1 + 4
82 + 82
14 + 36 + 15
40 + 40 + 5
30 + 30
+ 20 + 5
25 + 60
© 2016 Kalena Baker: Teaching Made Practical. All rights reserved.
Place Value: Mental Math Mazes
Decomposing Numbers– Create Your Own!
Create your own maze by writing math expressions that equal a certain number.
Start at the boy and end at the hat. After creating the maze, fill in the remaining
boxes with math expressions that do NOT equal that number. See if a partner can
make it through your maze successfully!
Number: ___________________
© 2016 Kalena Baker: Teaching Made Practical. All rights reserved.
Place Value: Mental Math Mazes
Decomposing Numbers– Create Your Own Grading Rubric
Student Name: _________________________________________
3 points
2 points
1 point
Completeness
The student
completed the
entire assignment.
The student
completed most of
the assignment.
The student
completed very
little of the
assignment.
Accuracy
The student
showed a
thorough
understanding of
how to
decompose
numbers and
created a working
maze.
The student
showed some
understanding of
how to decompose
numbers. Some of
the maze the
student created
was incorrect.
The student
showed a very
limited
understanding of
how to decompose
numbers.
Quality
The student put
extraordinary
effort into
creating a quality
maze.
The student put
average effort
into creating the
maze.
The student put
minimal effort into
creating the
maze. .
Total Points out of 9:
© 2016 Kalena Baker: Teaching Made Practical. All rights reserved.
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Acknowledgements
© 2016 Kalena Baker: Teaching Made Practical. All rights reserved.
By copyright law, the download of this product entitles one teacher the use of the digital and printed
files for a single classroom. Files are not to be shared or published (including being displayed on a
website) in any way without direct permission from the author, Kalena Baker.