Question 2 of 11beginner🔧 ApplyShort Answer3 marks

Identify numbers between 1 and 20 as even or odd. You may draw the pairing arrangement of the numbers.

Correct Answer

Odd numbers between 1 and 20: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19

Even numbers between 1 and 20: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20

Pairing Property: Odd numbers cannot be paired completely (one remains alone). Even numbers can be arranged in complete pairs.

Exercise: TWO WAYS | Q: 15 | (Page Page 3)
For More Understanding

Explanation

The chapter encourages students to draw pairing arrangements to visualize even and odd numbers. Odd numbers (1, 3, 5, 7, 9, 11, 13, 15, 17, 19) always have one object left unpaired. Even numbers (2, 4, 6, 8, 10, 12, 14, 16, 18, 20) can be completely paired.

Solution Steps

  1. Identify odd numbers between 1 and 20: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19

  2. Identify even numbers between 1 and 20: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20

  3. Odd numbers cannot be paired completely (one remains alone).

  4. Even numbers can be arranged in complete pairs.

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