Question 5 of 20intermediate🔧 ApplyNumerical2 marks

We have 52 stamps now. Next time when we come, we will have 75 stamps! How many more stamps will they need? Figure it out using the number line. ___ stamps + ___ stamps = ___ stamps. Or, ___ + ___ = ___

Correct Answer

Given: Current stamps = 52 Target stamps = 75

Solution: Start at 52 on the number line. Jump 3 to reach 55. Jump 20 to reach 75. Total jump = 3 + 20 = 23

Answer: 52 stamps + 23 stamps = 75 stamps Or, 52 + 23 = 75 ∴ They will need 23 more stamps.

Exercise: In-text Practice | Q: 10 | (Chapter: Page 5)
For More Understanding

Explanation

Using number line: Start at 52, jump to reach 75. Jump 3 to reach 55, then jump 20 to reach 75. Total jump = 23. So 75 - 52 = 23.

Solution Steps

  1. Step 1: Current stamps = 52, Target = 75

  2. Step 2: Find difference: 75 - 52 = ?

  3. Step 3: Using number line: 52 + 3 = 55, 55 + 20 = 75

  4. Step 4: Total needed = 3 + 20 = 23 stamps.

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