CICET

🎓 Small interactive 11+ group tuitions for Years 3 & 4 are also available. See details → Number Pattern Fun

Number Pattern Fun

📋
What is a sequence?

A sequence is just a list (a table is also a sequence). Example: the 3× table —

Jump: +3
🔎
Step 1 — Check the differences:
1a - Normal jumps
Answer : 19
Explanation: Every jump is +3. So 16 + 3 = 19.
"First check the jump — equal jumps mean simple steps!"
📈
Step 1b — Differences changing regularly
Answer : 27
Explanation: Jumps increase by +1. Next jump = 6 + 1 = +7. So 20 + 7 = 27.
"If the jumps grow, a new pattern will show!"
📈
Step 1c — Cycle Patterns (Repeat Jumps)
Answer: 13
Explanation: Sometimes jumps repeat in cycles. Cycle jumps: +2, +3, +1 → repeat → next is +1 → Answer = 13
"If the steps repeat, the answer is sweet!"
✖️
Step 2 — Multiplication or division
Numbers growing too fast? Think × or ÷.
Answer : 81
Explanation: Multiply by 3 each time. 27 × 3 = 81.
"If it jumps too high, multiplication might apply!"
🧩
Step 3 — Mixed operations (repeat cycle)
Rules may change each step.
Answer : 132
Explanation: After 44 the next rule is ×3 → 44 × 3 = 132.
"Up, down, mix and match — look for a repeating batch!"
➕➕
Step 4 — Previous two add pattern
Answer : 29
Explanation: 3+4=7, 4+7=11, 7+11=18 → 18 (previous) + 11 (one-before) = 29.
"Add the last two to find the new!"
🟥
Step 5 — Square Number Sequences
Some sequences follow square numbers (1², 2², 3², 4²...). They grow quickly, so the jumps often look irregular — but the squares themselves are neat!
Answer : 5² = 25
Explanation: The terms match square numbers: 1, 4, 9, 16 → these are 1², 2², 3², 4². Continue the next square: 5² = 25.
"Square numbers climb like steps — 1², 2², 3²... nice and neat!"
🧊
Step 6: Cube Number Sequences
Cube patterns grow quickly: 1³ = 1, 2³ = 8, 3³ = 27, 4³ = 64...
Answer: 125
Explanation: Each term is n³. So next is 5³ = 125.
"Cubes climb fast, bigger than the last!"
📚
Squares & Cubes (1 → 12)
🔁
Step 7 — Frog Jumping patterns (Alternating patterns): split odd & even positions
Two different patterns run at the same time.
Answer : Next (position 7 → odd) = 7
Explanation: Odd terms 1 → 3 → 5 → next odd = 5 + 2 → 7.
"Odds do one, evens do another — they help each other!"
🔬
Step 8 — Sequence of a sequence
Take differences → then apply a rule to those differences.
Answer : Next difference = 27 × 3 = 81 → Next term = 41 + 81 = 122
Explanation: The first-level differences are 1, 3, 9, 27 (×3). Continue the jumping rule → 81; 41 + 81 = 122.
"When the jumps look wild, check the jumps’ child!"
🔤
Step 9 — VR Letter sequences
Convert letters to positions (A=1, B=2, C=3, D=4, E=5,...).
So A=1, C=3, F=6, J=10. The sequence is: 1, 3, 6, 10, ___.
Answer : O
Explanation: The number pattern is +2, +3, +4, so next +5 → 10 + 5 = 15 → 15 = O.
"Turn letters into numbers — then spot the wonders!"
🎵
Final Poem to remember the tricks
Check the jumps, see if they match; if they grow, find the next step.
Split for two when things repeat; multiply when numbers leap.
Mix the moves, add the two, then check the jumps — and you'll get through!