Missing in Sequence

NCERT anchor: NCERT Joyful Mathematics Class 1 — fill-in-the-gap pattern exercises

• Fill the gap in a pattern using clues on both sides.
• Check that your answer fits before and after neighbours.
• Use number line or shape unit to verify.

1. Gap in the middle

Level 1 (Verbal): 2, ?, 4 → missing is 3.

Level 2 (Symbolic): Neighbours show +1 rule.

Visual: Empty box between two known pictures.

2. Both sides must match

Verbal: ? must follow left item AND lead to right item.

Visual: Arrow into box from both sides.

3. Try answer in the gap

Say full sequence aloud with your guess inserted.

Missing bead in a necklace

Step 1 — Beads: red, ?, red, blue, red, blue…
Step 2 — Look wider: pattern may be red-blue repeating.
Step 3 — Between red and red with blue after → missing is **blue**? Check: red, blue, red, blue ✓
Step 4 — If pattern red, blue only: position 2 needs **blue**.
Answer: blue bead.

• Fill: 5, ?, 7
• Fill: ○, □, ?, □
• 3, ?, 5, 6 — is pattern +1?
• Stretch: 2, ?, 6, 8 — find missing and state rule.

Revision tip: Insert guess and read whole row aloud — smooth means correct.

Open the Practice tab for graded questions on Missing in Sequence.