Play with Patterns — Practice

Question 1

What is the rule? 4, 8, 12, 16, ___ . Write the next number.

Accepted Answer

Rule: Add 4 each time. Next number: 20.

Question 2

What is the rule? 90, 80, 70, 60, ___ . Write the next number.

Accepted Answer

Rule: Subtract 10 each time. Next number: 50.

Question 3

Create a growing pattern that starts at 3 and adds 6 each time. Write the first 5 numbers.

Accepted Answer

3, 9, 15, 21, 27. (3+6=9, 9+6=15, 15+6=21, 21+6=27.)

Question 4

Using A=1, B=2, C=3... decode this message: 13, 1, 20, 8.

Accepted Answer

M=13, A=1, T=20, H=8 → MATH.

Question 5

In a 3×3 magic square, one row is 2, 7, 6 (sum = 15). Fill the missing numbers: Row 1: 2, 7, 6. Row 2: 9, 5, 1. Row 3: 4, 3, 8. Verify all rows, columns, and diagonals sum to 15.

Accepted Answer

All rows: 2+7+6=15, 9+5+1=15, 4+3+8=15. All columns: 2+9+4=15, 7+5+3=15, 6+1+8=15. Diagonals: 2+5+8=15, 6+5+4=15. Magic constant is 15. ✓

Practice — Play with Patterns

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