Workbook Detail
Number Line 1 20 Medium — Set 3
Find the missing number on the number line (2 to 23, step 1)
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Answer: 10
- Start
- 2
- End
- 23
- Step
- 1
- Markers
- {"value":2,"blank":false}
- {"value":3,"blank":false}
- {"value":4,"blank":false}
- {"value":5,"blank":false}
- {"value":6,"blank":false}
- {"value":7,"blank":false}
- {"value":8,"blank":false}
- {"value":9,"blank":false}
- {"value":10,"blank":true}
- {"value":11,"blank":false}
- {"value":12,"blank":false}
- {"value":13,"blank":false}
- {"value":14,"blank":false}
- {"value":15,"blank":false}
- {"value":16,"blank":false}
- {"value":17,"blank":false}
- {"value":18,"blank":false}
- {"value":19,"blank":false}
- {"value":20,"blank":false}
- {"value":21,"blank":false}
- {"value":22,"blank":false}
- {"value":23,"blank":false}
Find the missing number on the number line (5 to 26, step 1)
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Answer: 15
- Start
- 5
- End
- 26
- Step
- 1
- Markers
- {"value":5,"blank":false}
- {"value":6,"blank":false}
- {"value":7,"blank":false}
- {"value":8,"blank":false}
- {"value":9,"blank":false}
- {"value":10,"blank":false}
- {"value":11,"blank":false}
- {"value":12,"blank":false}
- {"value":13,"blank":false}
- {"value":14,"blank":false}
- {"value":15,"blank":true}
- {"value":16,"blank":false}
- {"value":17,"blank":false}
- {"value":18,"blank":false}
- {"value":19,"blank":false}
- {"value":20,"blank":false}
- {"value":21,"blank":false}
- {"value":22,"blank":false}
- {"value":23,"blank":false}
- {"value":24,"blank":false}
- {"value":25,"blank":false}
- {"value":26,"blank":false}
Find the missing number on the number line (18 to 36, step 4)
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Answer: 18
- Start
- 18
- End
- 36
- Step
- 4
- Markers
- {"value":18,"blank":true}
- {"value":22,"blank":false}
- {"value":26,"blank":false}
- {"value":30,"blank":false}
- {"value":34,"blank":false}
Find the missing number on the number line (0 to 23, step 1)
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Answer: 23
- Start
- 0
- End
- 23
- Step
- 1
- Markers
- {"value":0,"blank":false}
- {"value":1,"blank":false}
- {"value":2,"blank":false}
- {"value":3,"blank":false}
- {"value":4,"blank":false}
- {"value":5,"blank":false}
- {"value":6,"blank":false}
- {"value":7,"blank":false}
- {"value":8,"blank":false}
- {"value":9,"blank":false}
- {"value":10,"blank":false}
- {"value":11,"blank":false}
- {"value":12,"blank":false}
- {"value":13,"blank":false}
- {"value":14,"blank":false}
- {"value":15,"blank":false}
- {"value":16,"blank":false}
- {"value":17,"blank":false}
- {"value":18,"blank":false}
- {"value":19,"blank":false}
- {"value":20,"blank":false}
- {"value":21,"blank":false}
- {"value":22,"blank":false}
- {"value":23,"blank":true}
Find the missing number on the number line (20 to 25, step 3)
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Answer: 20
- Start
- 20
- End
- 25
- Step
- 3
- Markers
- {"value":20,"blank":true}
- {"value":23,"blank":false}
Find the missing number on the number line (5 to 16, step 1)
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Answer: 11
- Start
- 5
- End
- 16
- Step
- 1
- Markers
- {"value":5,"blank":false}
- {"value":6,"blank":false}
- {"value":7,"blank":false}
- {"value":8,"blank":false}
- {"value":9,"blank":false}
- {"value":10,"blank":false}
- {"value":11,"blank":true}
- {"value":12,"blank":false}
- {"value":13,"blank":false}
- {"value":14,"blank":false}
- {"value":15,"blank":false}
- {"value":16,"blank":false}
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><circle fill="#DD2E44" cx="18" cy="18" r="18"/></g></svg>AltText: red circlePlacement: before-question
- VisualToken
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Find the missing number on the number line (10 to 22, step 3)
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Answer: 22
- Start
- 10
- End
- 22
- Step
- 3
- Markers
- {"value":10,"blank":false}
- {"value":13,"blank":false}
- {"value":16,"blank":false}
- {"value":19,"blank":false}
- {"value":22,"blank":true}
Find the missing number on the number line (2 to 9, step 4)
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Answer: 2
- Start
- 2
- End
- 9
- Step
- 4
- Markers
- {"value":2,"blank":true}
- {"value":6,"blank":false}
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#5DADEC" d="M35.885 11.833c0-5.45-4.418-9.868-9.867-9.868-3.308 0-6.227 1.633-8.018 4.129-1.791-2.496-4.71-4.129-8.017-4.129-5.45 0-9.868 4.417-9.868 9.868 0 .772.098 1.52.266 2.241C1.751 22.587 11.216 31.568 18 34.034c6.783-2.466 16.249-11.447 17.617-19.959.17-.721.268-1.469.268-2.242z"/></g></svg>AltText: heart bluePlacement: before-question
- VisualToken
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Find the missing number on the number line (17 to 44, step 4)
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Answer: 37
- Start
- 17
- End
- 44
- Step
- 4
- Markers
- {"value":17,"blank":false}
- {"value":21,"blank":false}
- {"value":25,"blank":false}
- {"value":29,"blank":false}
- {"value":33,"blank":false}
- {"value":37,"blank":true}
- {"value":41,"blank":false}
Find the missing number on the number line (0 to 20, step 2)
- Start
- 0
- End
- 20
- Step
- 2
- Markers
- {"value":0,"blank":true}
- {"value":2,"blank":false}
- {"value":4,"blank":false}
- {"value":6,"blank":false}
- {"value":8,"blank":false}
- {"value":10,"blank":false}
- {"value":12,"blank":false}
- {"value":14,"blank":false}
- {"value":16,"blank":false}
- {"value":18,"blank":false}
- {"value":20,"blank":false}
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#FDCB58" d="M35.885 11.833c0-5.45-4.418-9.868-9.867-9.868-3.308 0-6.227 1.633-8.018 4.129-1.791-2.496-4.71-4.129-8.017-4.129-5.45 0-9.868 4.417-9.868 9.868 0 .772.098 1.52.266 2.241C1.751 22.587 11.216 31.568 18 34.034c6.783-2.466 16.249-11.447 17.617-19.959.17-.721.268-1.469.268-2.242z"/></g></svg>AltText: heart yellowPlacement: before-question
- VisualToken
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Find the missing number on the number line (9 to 30, step 2)
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Answer: 27
- Start
- 9
- End
- 30
- Step
- 2
- Markers
- {"value":9,"blank":false}
- {"value":11,"blank":false}
- {"value":13,"blank":false}
- {"value":15,"blank":false}
- {"value":17,"blank":false}
- {"value":19,"blank":false}
- {"value":21,"blank":false}
- {"value":23,"blank":false}
- {"value":25,"blank":false}
- {"value":27,"blank":true}
- {"value":29,"blank":false}
Find the missing number on the number line (9 to 26, step 3)
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Answer: 15
- Start
- 9
- End
- 26
- Step
- 3
- Markers
- {"value":9,"blank":false}
- {"value":12,"blank":false}
- {"value":15,"blank":true}
- {"value":18,"blank":false}
- {"value":21,"blank":false}
- {"value":24,"blank":false}
Find the missing number on the number line (6 to 16, step 2)
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Answer: 16
- Start
- 6
- End
- 16
- Step
- 2
- Markers
- {"value":6,"blank":false}
- {"value":8,"blank":false}
- {"value":10,"blank":false}
- {"value":12,"blank":false}
- {"value":14,"blank":false}
- {"value":16,"blank":true}
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#78B159" d="M36 32c0 2.209-1.791 4-4 4H4c-2.209 0-4-1.791-4-4V4c0-2.209 1.791-4 4-4h28c2.209 0 4 1.791 4 4v28z"/></g></svg>AltText: green squarePlacement: before-question
- VisualToken
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Find the missing number on the number line (13 to 28, step 3)
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Answer: 28
- Start
- 13
- End
- 28
- Step
- 3
- Markers
- {"value":13,"blank":false}
- {"value":16,"blank":false}
- {"value":19,"blank":false}
- {"value":22,"blank":false}
- {"value":25,"blank":false}
- {"value":28,"blank":true}
Find the missing number on the number line (4 to 22, step 1)
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Answer: 12
- Start
- 4
- End
- 22
- Step
- 1
- Markers
- {"value":4,"blank":false}
- {"value":5,"blank":false}
- {"value":6,"blank":false}
- {"value":7,"blank":false}
- {"value":8,"blank":false}
- {"value":9,"blank":false}
- {"value":10,"blank":false}
- {"value":11,"blank":false}
- {"value":12,"blank":true}
- {"value":13,"blank":false}
- {"value":14,"blank":false}
- {"value":15,"blank":false}
- {"value":16,"blank":false}
- {"value":17,"blank":false}
- {"value":18,"blank":false}
- {"value":19,"blank":false}
- {"value":20,"blank":false}
- {"value":21,"blank":false}
- {"value":22,"blank":false}
Find the missing number on the number line (5 to 30, step 2)
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Answer: 9
- Start
- 5
- End
- 30
- Step
- 2
- Markers
- {"value":5,"blank":false}
- {"value":7,"blank":false}
- {"value":9,"blank":true}
- {"value":11,"blank":false}
- {"value":13,"blank":false}
- {"value":15,"blank":false}
- {"value":17,"blank":false}
- {"value":19,"blank":false}
- {"value":21,"blank":false}
- {"value":23,"blank":false}
- {"value":25,"blank":false}
- {"value":27,"blank":false}
- {"value":29,"blank":false}
Find the missing number on the number line (19 to 35, step 2)
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Answer: 33
- Start
- 19
- End
- 35
- Step
- 2
- Markers
- {"value":19,"blank":false}
- {"value":21,"blank":false}
- {"value":23,"blank":false}
- {"value":25,"blank":false}
- {"value":27,"blank":false}
- {"value":29,"blank":false}
- {"value":31,"blank":false}
- {"value":33,"blank":true}
- {"value":35,"blank":false}
Find the missing number on the number line (5 to 18, step 3)
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Answer: 8
- Start
- 5
- End
- 18
- Step
- 3
- Markers
- {"value":5,"blank":false}
- {"value":8,"blank":true}
- {"value":11,"blank":false}
- {"value":14,"blank":false}
- {"value":17,"blank":false}
- Visual
- Type: inline-svgSvg: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44 44" width="44" height="44"><g transform="translate(4,4) scale(1)"><path fill="#E75A70" d="M19.146 7.639c-.63-.901-1.637-.884-2.236.038L6.09 24.323C5.491 25.245 5.9 26 7 26h23c1.1 0 1.483-.737.854-1.639L19.146 7.639z"/></g></svg>AltText: red trianglePlacement: before-question
- VisualToken
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Find the missing number on the number line (13 to 35, step 3)
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Answer: 25
- Start
- 13
- End
- 35
- Step
- 3
- Markers
- {"value":13,"blank":false}
- {"value":16,"blank":false}
- {"value":19,"blank":false}
- {"value":22,"blank":false}
- {"value":25,"blank":true}
- {"value":28,"blank":false}
- {"value":31,"blank":false}
- {"value":34,"blank":false}
Find the missing number on the number line (1 to 30, step 1)
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Answer: 21
- Start
- 1
- End
- 30
- Step
- 1
- Markers
- {"value":1,"blank":false}
- {"value":2,"blank":false}
- {"value":3,"blank":false}
- {"value":4,"blank":false}
- {"value":5,"blank":false}
- {"value":6,"blank":false}
- {"value":7,"blank":false}
- {"value":8,"blank":false}
- {"value":9,"blank":false}
- {"value":10,"blank":false}
- {"value":11,"blank":false}
- {"value":12,"blank":false}
- {"value":13,"blank":false}
- {"value":14,"blank":false}
- {"value":15,"blank":false}
- {"value":16,"blank":false}
- {"value":17,"blank":false}
- {"value":18,"blank":false}
- {"value":19,"blank":false}
- {"value":20,"blank":false}
- {"value":21,"blank":true}
- {"value":22,"blank":false}
- {"value":23,"blank":false}
- {"value":24,"blank":false}
- {"value":25,"blank":false}
- {"value":26,"blank":false}
- {"value":27,"blank":false}
- {"value":28,"blank":false}
- {"value":29,"blank":false}
- {"value":30,"blank":false}
Teaching Notes
Practice number line 1 20 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
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