Pattern Around Us

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A pattern is a regular arrangement or sequence that repeats in a predictable way. Examples include arrangements of objects, numbers, or shapes that follow a rule.

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4 × 5 = 20 coconut trees. We can count by grouping: 5 + 5 + 5 + 5 = 20 trees total.

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Grouping means organizing objects into equal sets to make counting easier and faster. Instead of counting one by one, we can count by groups like 5s or 10s.

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3 × 6 = 18 coconut laddoos. We can think of it as 6 + 6 + 6 = 18 laddoos.

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Even numbers are numbers that can be divided into pairs without any leftover. They end in 0, 2, 4, 6, or 8. Examples: 2, 4, 6, 8, 10, 12.

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Odd numbers are numbers that cannot be divided into pairs - there's always one left over. They end in 1, 3, 5, 7, or 9. Examples: 1, 3, 5, 7, 9, 11.

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Look at the last digit (ones place). If it's 0, 2, 4, 6, or 8, the number is even. If it's 1, 3, 5, 7, or 9, the number is odd.

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15 is an odd number because it ends in 5. When we try to pair 15 objects, we get 7 pairs with 1 object left over.