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Subtraction Finger Chart

A subtraction finger chart is a hands-on reference for practicing counting-back and take-away before they're memorized — a technique widely used in Montessori classrooms. Hover any cell in the grid below to trace it back to its row and column, or scroll down for individual tables you can print or save as a PDF.

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Interactive Subtraction Grid (20 × 20)

Each column is one number's subtraction table — read down a column for the same rows shown on that number's own page below. Scroll down for individual subtraction tables.

Subtraction Grid
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19
2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18
3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17
4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16
5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15
6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14
7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13
8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12
9 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11
10 9 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10
11 10 9 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9
12 11 10 9 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8
13 12 11 10 9 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7
14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 -1 -2 -3
18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 -1 -2
19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 -1
20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

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Individual Subtraction Tables 1–20

1 1 = 0
2 1 = 1
3 1 = 2
4 1 = 3
5 1 = 4
6 1 = 5
7 1 = 6
8 1 = 7
9 1 = 8
10 1 = 9
11 1 = 10
12 1 = 11
13 1 = 12
14 1 = 13
15 1 = 14
16 1 = 15
17 1 = 16
18 1 = 17
19 1 = 18
20 1 = 19
1 2 = -1
2 2 = 0
3 2 = 1
4 2 = 2
5 2 = 3
6 2 = 4
7 2 = 5
8 2 = 6
9 2 = 7
10 2 = 8
11 2 = 9
12 2 = 10
13 2 = 11
14 2 = 12
15 2 = 13
16 2 = 14
17 2 = 15
18 2 = 16
19 2 = 17
20 2 = 18

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1 3 = -2
2 3 = -1
3 3 = 0
4 3 = 1
5 3 = 2
6 3 = 3
7 3 = 4
8 3 = 5
9 3 = 6
10 3 = 7
11 3 = 8
12 3 = 9
13 3 = 10
14 3 = 11
15 3 = 12
16 3 = 13
17 3 = 14
18 3 = 15
19 3 = 16
20 3 = 17
1 4 = -3
2 4 = -2
3 4 = -1
4 4 = 0
5 4 = 1
6 4 = 2
7 4 = 3
8 4 = 4
9 4 = 5
10 4 = 6
11 4 = 7
12 4 = 8
13 4 = 9
14 4 = 10
15 4 = 11
16 4 = 12
17 4 = 13
18 4 = 14
19 4 = 15
20 4 = 16
1 5 = -4
2 5 = -3
3 5 = -2
4 5 = -1
5 5 = 0
6 5 = 1
7 5 = 2
8 5 = 3
9 5 = 4
10 5 = 5
11 5 = 6
12 5 = 7
13 5 = 8
14 5 = 9
15 5 = 10
16 5 = 11
17 5 = 12
18 5 = 13
19 5 = 14
20 5 = 15
1 6 = -5
2 6 = -4
3 6 = -3
4 6 = -2
5 6 = -1
6 6 = 0
7 6 = 1
8 6 = 2
9 6 = 3
10 6 = 4
11 6 = 5
12 6 = 6
13 6 = 7
14 6 = 8
15 6 = 9
16 6 = 10
17 6 = 11
18 6 = 12
19 6 = 13
20 6 = 14
1 7 = -6
2 7 = -5
3 7 = -4
4 7 = -3
5 7 = -2
6 7 = -1
7 7 = 0
8 7 = 1
9 7 = 2
10 7 = 3
11 7 = 4
12 7 = 5
13 7 = 6
14 7 = 7
15 7 = 8
16 7 = 9
17 7 = 10
18 7 = 11
19 7 = 12
20 7 = 13
1 8 = -7
2 8 = -6
3 8 = -5
4 8 = -4
5 8 = -3
6 8 = -2
7 8 = -1
8 8 = 0
9 8 = 1
10 8 = 2
11 8 = 3
12 8 = 4
13 8 = 5
14 8 = 6
15 8 = 7
16 8 = 8
17 8 = 9
18 8 = 10
19 8 = 11
20 8 = 12
1 9 = -8
2 9 = -7
3 9 = -6
4 9 = -5
5 9 = -4
6 9 = -3
7 9 = -2
8 9 = -1
9 9 = 0
10 9 = 1
11 9 = 2
12 9 = 3
13 9 = 4
14 9 = 5
15 9 = 6
16 9 = 7
17 9 = 8
18 9 = 9
19 9 = 10
20 9 = 11
1 10 = -9
2 10 = -8
3 10 = -7
4 10 = -6
5 10 = -5
6 10 = -4
7 10 = -3
8 10 = -2
9 10 = -1
10 10 = 0
11 10 = 1
12 10 = 2
13 10 = 3
14 10 = 4
15 10 = 5
16 10 = 6
17 10 = 7
18 10 = 8
19 10 = 9
20 10 = 10
1 11 = -10
2 11 = -9
3 11 = -8
4 11 = -7
5 11 = -6
6 11 = -5
7 11 = -4
8 11 = -3
9 11 = -2
10 11 = -1
11 11 = 0
12 11 = 1
13 11 = 2
14 11 = 3
15 11 = 4
16 11 = 5
17 11 = 6
18 11 = 7
19 11 = 8
20 11 = 9
1 12 = -11
2 12 = -10
3 12 = -9
4 12 = -8
5 12 = -7
6 12 = -6
7 12 = -5
8 12 = -4
9 12 = -3
10 12 = -2
11 12 = -1
12 12 = 0
13 12 = 1
14 12 = 2
15 12 = 3
16 12 = 4
17 12 = 5
18 12 = 6
19 12 = 7
20 12 = 8
1 13 = -12
2 13 = -11
3 13 = -10
4 13 = -9
5 13 = -8
6 13 = -7
7 13 = -6
8 13 = -5
9 13 = -4
10 13 = -3
11 13 = -2
12 13 = -1
13 13 = 0
14 13 = 1
15 13 = 2
16 13 = 3
17 13 = 4
18 13 = 5
19 13 = 6
20 13 = 7
1 14 = -13
2 14 = -12
3 14 = -11
4 14 = -10
5 14 = -9
6 14 = -8
7 14 = -7
8 14 = -6
9 14 = -5
10 14 = -4
11 14 = -3
12 14 = -2
13 14 = -1
14 14 = 0
15 14 = 1
16 14 = 2
17 14 = 3
18 14 = 4
19 14 = 5
20 14 = 6
1 15 = -14
2 15 = -13
3 15 = -12
4 15 = -11
5 15 = -10
6 15 = -9
7 15 = -8
8 15 = -7
9 15 = -6
10 15 = -5
11 15 = -4
12 15 = -3
13 15 = -2
14 15 = -1
15 15 = 0
16 15 = 1
17 15 = 2
18 15 = 3
19 15 = 4
20 15 = 5
1 16 = -15
2 16 = -14
3 16 = -13
4 16 = -12
5 16 = -11
6 16 = -10
7 16 = -9
8 16 = -8
9 16 = -7
10 16 = -6
11 16 = -5
12 16 = -4
13 16 = -3
14 16 = -2
15 16 = -1
16 16 = 0
17 16 = 1
18 16 = 2
19 16 = 3
20 16 = 4
1 17 = -16
2 17 = -15
3 17 = -14
4 17 = -13
5 17 = -12
6 17 = -11
7 17 = -10
8 17 = -9
9 17 = -8
10 17 = -7
11 17 = -6
12 17 = -5
13 17 = -4
14 17 = -3
15 17 = -2
16 17 = -1
17 17 = 0
18 17 = 1
19 17 = 2
20 17 = 3
1 18 = -17
2 18 = -16
3 18 = -15
4 18 = -14
5 18 = -13
6 18 = -12
7 18 = -11
8 18 = -10
9 18 = -9
10 18 = -8
11 18 = -7
12 18 = -6
13 18 = -5
14 18 = -4
15 18 = -3
16 18 = -2
17 18 = -1
18 18 = 0
19 18 = 1
20 18 = 2
1 19 = -18
2 19 = -17
3 19 = -16
4 19 = -15
5 19 = -14
6 19 = -13
7 19 = -12
8 19 = -11
9 19 = -10
10 19 = -9
11 19 = -8
12 19 = -7
13 19 = -6
14 19 = -5
15 19 = -4
16 19 = -3
17 19 = -2
18 19 = -1
19 19 = 0
20 19 = 1
1 20 = -19
2 20 = -18
3 20 = -17
4 20 = -16
5 20 = -15
6 20 = -14
7 20 = -13
8 20 = -12
9 20 = -11
10 20 = -10
11 20 = -9
12 20 = -8
13 20 = -7
14 20 = -6
15 20 = -5
16 20 = -4
17 20 = -3
18 20 = -2
19 20 = -1
20 20 = 0