Question 26 of 60beginner🔧 ApplyNumerical2 marks

168 ÷ 8 (using halving strategy)

Correct Answer

Step 1: To divide by 8, halve three times. Step 2: Half of 168 = 84 Step 3: Half of 84 = 42 Step 4: Half of 42 = 21 ∴ 168 ÷ 8 = 21

Note: This repeated halving strategy is efficient for divisors that are powers of 2.

Exercise: Try It! | Q: 5 | (Page Page 5)
For More Understanding

Explanation

To divide by 8, we can halve three times. Half of 168 is 84. Half of 84 is 42. Half of 42 is 21. So 168 ÷ 8 = 21. This repeated halving strategy is efficient for divisors that are powers of 2.

Solution Steps

  1. Step 1: To divide by 8, halve three times

  2. Step 2: Half of 168 = 84

  3. Step 3: Half of 84 = 42

  4. Step 4: Half of 42 = 21

  5. Step 5: Therefore, 168 ÷ 8 = 21

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