Question 21 of 48beginner🔧 ApplyShort Answer2 marks

Give 3 examples of numbers that when taken 5 times gives an answer ending with (i) 0 (ii) 5

Correct Answer

(i) Answer ending with 0: Examples: 2, 4, 6 2×52 \times 5 = 10 4×54 \times 5 = 20 6×56 \times 5 = 30 ∴ Any even number multiplied by 5 ends with 0.

(ii) Answer ending with 5: Examples: 1, 3, 5 1×51 \times 5 = 5 3×53 \times 5 = 15 5×55 \times 5 = 25 ∴ Any odd number multiplied by 5 ends with 5.

Exercise: Seeing Patterns in Multiplication Tables | Q: 3 | (Page Page 18)
For More Understanding

Explanation

The chapter establishes the pattern that even numbers × 5 end in 0, and odd numbers × 5 end in 5. This pattern continues for all whole numbers.

Solution Steps

  1. Identify that even numbers multiplied by 5 give answers ending with 0.

  2. Provide examples: 2, 4, 6 (2×52 \times 5=10, 4×54 \times 5=20, 6×56 \times 5=30).

  3. Identify that odd numbers multiplied by 5 give answers ending with 5.

  4. Provide examples: 1, 3, 5 (1×51 \times 5=5, 3×53 \times 5=15, 5×55 \times 5=25).

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