Workbook Detail
Number Line 1 20 Expert — Set 6
Find the missing number on the number line (4 to 13, step 4)
Show answer
Answer: 8
- Start
- 4
- End
- 13
- Step
- 4
- Markers
- {"value":4,"blank":false}
- {"value":8,"blank":true}
- {"value":12,"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="#F4900C" d="M1.061 19.062c-.583-.584-.583-1.539 0-2.122L16.94 1.061c.583-.583 1.539-.583 2.122 0L34.94 16.94c.583.583.583 1.538 0 2.121L19.062 34.939c-.583.583-1.539.583-2.122 0L1.061 19.062z"/></g></svg>AltText: diamond orangePlacement: before-question
- VisualToken
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Find the missing number on the number line (21 to 46, step 2)
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Answer: 37
- Start
- 21
- End
- 46
- Step
- 2
- Markers
- {"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":false}
- {"value":35,"blank":false}
- {"value":37,"blank":true}
- {"value":39,"blank":false}
- {"value":41,"blank":false}
- {"value":43,"blank":false}
- {"value":45,"blank":false}
Find the missing number on the number line (7 to 24, step 1)
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Answer: 21
- Start
- 7
- End
- 24
- Step
- 1
- Markers
- {"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}
Find the missing number on the number line (16 to 21, step 2)
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Answer: 18
- Start
- 16
- End
- 21
- Step
- 2
- Markers
- {"value":16,"blank":false}
- {"value":18,"blank":true}
- {"value":20,"blank":false}
Find the missing number on the number line (2 to 11, step 4)
Show answer
Answer: 10
- Start
- 2
- End
- 11
- Step
- 4
- Markers
- {"value":2,"blank":false}
- {"value":6,"blank":false}
- {"value":10,"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="#F4900C" d="M1.061 19.062c-.583-.584-.583-1.539 0-2.122L16.94 1.061c.583-.583 1.539-.583 2.122 0L34.94 16.94c.583.583.583 1.538 0 2.121L19.062 34.939c-.583.583-1.539.583-2.122 0L1.061 19.062z"/></g></svg>AltText: diamond orangePlacement: before-question
- VisualToken
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Find the missing number on the number line (15 to 44, step 4)
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Answer: 23
- Start
- 15
- End
- 44
- Step
- 4
- Markers
- {"value":15,"blank":false}
- {"value":19,"blank":false}
- {"value":23,"blank":true}
- {"value":27,"blank":false}
- {"value":31,"blank":false}
- {"value":35,"blank":false}
- {"value":39,"blank":false}
- {"value":43,"blank":false}
Find the missing number on the number line (16 to 37, step 4)
Show answer
Answer: 28
- Start
- 16
- End
- 37
- Step
- 4
- Markers
- {"value":16,"blank":false}
- {"value":20,"blank":false}
- {"value":24,"blank":false}
- {"value":28,"blank":true}
- {"value":32,"blank":false}
- {"value":36,"blank":false}
Find the missing number on the number line (6 to 19, step 1)
Show answer
Answer: 13
- Start
- 6
- End
- 19
- Step
- 1
- Markers
- {"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":true}
- {"value":14,"blank":false}
- {"value":15,"blank":false}
- {"value":16,"blank":false}
- {"value":17,"blank":false}
- {"value":18,"blank":false}
- {"value":19,"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="#78B159" cx="18" cy="18" r="18"/></g></svg>AltText: green circlePlacement: before-question
- VisualToken
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Find the missing number on the number line (7 to 29, step 2)
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Answer: 25
- Start
- 7
- End
- 29
- Step
- 2
- Markers
- {"value":7,"blank":false}
- {"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":true}
- {"value":27,"blank":false}
- {"value":29,"blank":false}
Find the missing number on the number line (17 to 32, step 1)
Show answer
Answer: 25
- Start
- 17
- End
- 32
- Step
- 1
- Markers
- {"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":true}
- {"value":26,"blank":false}
- {"value":27,"blank":false}
- {"value":28,"blank":false}
- {"value":29,"blank":false}
- {"value":30,"blank":false}
- {"value":31,"blank":false}
- {"value":32,"blank":false}
Find the missing number on the number line (6 to 18, step 4)
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Answer: 18
- Start
- 6
- End
- 18
- Step
- 4
- Markers
- {"value":6,"blank":false}
- {"value":10,"blank":false}
- {"value":14,"blank":false}
- {"value":18,"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="#AA8ED6" 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 purplePlacement: before-question
- VisualToken
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Find the missing number on the number line (24 to 48, step 2)
Show answer
Answer: 34
- Start
- 24
- End
- 48
- Step
- 2
- Markers
- {"value":24,"blank":false}
- {"value":26,"blank":false}
- {"value":28,"blank":false}
- {"value":30,"blank":false}
- {"value":32,"blank":false}
- {"value":34,"blank":true}
- {"value":36,"blank":false}
- {"value":38,"blank":false}
- {"value":40,"blank":false}
- {"value":42,"blank":false}
- {"value":44,"blank":false}
- {"value":46,"blank":false}
- {"value":48,"blank":false}
Find the missing number on the number line (3 to 14, step 3)
Show answer
Answer: 12
- Start
- 3
- End
- 14
- Step
- 3
- Markers
- {"value":3,"blank":false}
- {"value":6,"blank":false}
- {"value":9,"blank":false}
- {"value":12,"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="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 greenPlacement: before-question
- VisualToken
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Find the missing number on the number line (9 to 25, step 2)
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Answer: 25
- Start
- 9
- End
- 25
- 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":true}
Find the missing number on the number line (22 to 50, step 3)
Show answer
Answer: 28
- Start
- 22
- End
- 50
- Step
- 3
- Markers
- {"value":22,"blank":false}
- {"value":25,"blank":false}
- {"value":28,"blank":true}
- {"value":31,"blank":false}
- {"value":34,"blank":false}
- {"value":37,"blank":false}
- {"value":40,"blank":false}
- {"value":43,"blank":false}
- {"value":46,"blank":false}
- {"value":49,"blank":false}
Find the missing number on the number line (15 to 25, step 1)
Show answer
Answer: 15
- Start
- 15
- End
- 25
- Step
- 1
- Markers
- {"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}
Find the missing number on the number line (6 to 25, step 3)
Show answer
Answer: 18
- Start
- 6
- End
- 25
- Step
- 3
- Markers
- {"value":6,"blank":false}
- {"value":9,"blank":false}
- {"value":12,"blank":false}
- {"value":15,"blank":false}
- {"value":18,"blank":true}
- {"value":21,"blank":false}
- {"value":24,"blank":false}
Find the missing number on the number line (6 to 18, step 4)
Show answer
Answer: 10
- Start
- 6
- End
- 18
- Step
- 4
- Markers
- {"value":6,"blank":false}
- {"value":10,"blank":true}
- {"value":14,"blank":false}
- {"value":18,"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="#DD2E44" 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 redPlacement: before-question
- VisualToken
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Find the missing number on the number line (8 to 27, step 3)
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Answer: 8
- Start
- 8
- End
- 27
- Step
- 3
- Markers
- {"value":8,"blank":true}
- {"value":11,"blank":false}
- {"value":14,"blank":false}
- {"value":17,"blank":false}
- {"value":20,"blank":false}
- {"value":23,"blank":false}
- {"value":26,"blank":false}
Find the missing number on the number line (10 to 31, step 3)
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Answer: 10
- Start
- 10
- End
- 31
- Step
- 3
- Markers
- {"value":10,"blank":true}
- {"value":13,"blank":false}
- {"value":16,"blank":false}
- {"value":19,"blank":false}
- {"value":22,"blank":false}
- {"value":25,"blank":false}
- {"value":28,"blank":false}
- {"value":31,"blank":false}
Teaching Notes
Practice number line 1 20 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
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