Differentiated KS1 Number Sequencing Worksheets - Maths - Free Printable

This worksheet asks students to complete number series by filling in the missing numbers. The pattern in each row is typically counting forward or backward by 1 (consecutive integers), which is appropriate for early elementary math (e.g., kindergarten or 1st grade).

Let’s go row by row and fill in the blanks logically.

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Row 1: `5, 6, __, __, 9, __, __, __`

- Pattern: Counting up by 1.
- After 6 comes 7, then 8 → so first two blanks: 7, 8
- After 9 comes 10, 11, 12 → next three blanks: 10, 11, 12

✔ Completed: 5, 6, 7, 8, 9, 10, 11, 12

---

Row 2: `__, 11, __, __, __, 15, __, 17`

- We see 11, then later 15 and 17.
- So likely counting up by 1.
- Before 11 → 10
- After 11 → 12, 13, 14 (to reach 15)
- After 15 → 16 (before 17)

✔ Completed: 10, 11, 12, 13, 14, 15, 16, 17

---

Row 3: `7, __, __, __, 11, __, 13, __`

- From 7 to 11 → 3 steps → must be 8, 9, 10
- After 11 → 12 (before 13)
- After 13 → 14

✔ Completed: 7, 8, 9, 10, 11, 12, 13, 14

---

Row 4: `__, 5, __, __, __, 9, __, 11`

- Between 5 and 9 → 6, 7, 8
- Before 5 → 4
- After 9 → 10 (before 11)

✔ Completed: 4, 5, 6, 7, 8, 9, 10, 11

---

Row 5: `__, __, 3, __, 5, 6, __, __`

- Around 3, 5, 6 → likely consecutive.
- Before 3 → 1, 2
- After 3 → 4 (before 5)
- After 6 → 7, 8

✔ Completed: 1, 2, 3, 4, 5, 6, 7, 8

---

Row 6: `13, __, __, __, 17, 18, __, __`

- From 13 to 17 → 14, 15, 16
- After 18 → 19, 20

✔ Completed: 13, 14, 15, 16, 17, 18, 19, 20

---

Row 7: `__, 12, 13, __, 15, __, __, __`

- Before 12 → 11
- After 13 → 14 (before 15)
- After 15 → 16, 17, 18

✔ Completed: 11, 12, 13, 14, 15, 16, 17, 18

---

Row 8: `__, 1, __, __, __, __, 6, 7`

- After 1 → 2, 3, 4, 5 (to reach 6)
- Before 1 → 0

✔ Completed: 0, 1, 2, 3, 4, 5, 6, 7

*(Note: Including 0 is fine for this level — it reinforces number sequence including zero.)*

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Row 9: `9, __, __, __, 13, __, __, 16`

- From 9 to 13 → 10, 11, 12
- From 13 to 16 → 14, 15

✔ Completed: 9, 10, 11, 12, 13, 14, 15, 16

---

Row 10: `12, 13, __, __, __, 17, __, __`

- From 13 to 17 → 14, 15, 16
- After 17 → 18, 19

✔ Completed: 12, 13, 14, 15, 16, 17, 18, 19

---

## ✔ Final Answer (All Rows Completed):

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

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## 💡 Teaching Tip:
This exercise reinforces number sense, sequencing, and predicting patterns. Students should be encouraged to:
- Look at the given numbers to spot the pattern (usually +1).
- Count aloud as they fill in blanks.
- Check their work by reading the full sequence to ensure it’s correct.

Great practice for building foundational math skills! 🎯