Question 12 of 15intermediate🔧 ApplyShort Answer2 marks

B. Choose any two flash cards and make a two-digit number. Now swap these flash cards to get another number and find out whether it is bigger or smaller than the previous number. How will you get the largest number using same digits?

Correct Answer

When you swap the digits of a two-digit number, you get a different number.

Example 1: 47 → 74 74 > 47 (larger)

Example 2: 82 → 28 28 < 82 (smaller)

Rule: To get the largest number using the same two digits, place the larger digit in the tens place and the smaller digit in the ones place.

Step 1: Choose two different digit cards (e.g., 4 and 7)

Step 2: Make a two-digit number (e.g., 47)

Step 3: Swap the digits to make another number (e.g., 74)

Step 4: Compare: 74 > 47 because 7 tens > 4 tens

Step 5: To get largest number, put larger digit in tens place

Why it works: The tens digit has more value than the ones digit, so to maximize the number, put the larger digit in the tens place. For example, with digits 3 and 7: 73 > 37.

Exercise: Flash Card Game | Q: 24 | (Page Page 12)
For More Understanding

Explanation

This activity teaches children about place value and comparison. The tens digit has more value than the ones digit, so to maximize the number, put the larger digit in the tens place. For example, with digits 3 and 7: 73 > 37.

Solution Steps

  1. Step 1: Choose two different digit cards (e.g., 4 and 7)

  2. Step 2: Make a two-digit number (e.g., 47)

  3. Step 3: Swap the digits to make another number (e.g., 74)

  4. Step 4: Compare: 74 > 47 because 7 tens > 4 tens

  5. Step 5: To get largest number, put larger digit in tens place

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