Large Numbers Around Us | A

Question 4

To make the digit 7, three sticks are needed.

Write or make the number 5108. How many sticks are required?

Question diagram 1
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Solution

We need to count the sticks for each digit in the number 5108.

Step 1 — Count sticks for each digit

Let us count the segments (sticks) for each digit. We will list sticks for digits 0 to 9.

  • Digit 0 needs 6 sticks.
  • Digit 1 needs 2 sticks.
  • Digit 2 needs 5 sticks.
  • Digit 3 needs 5 sticks.
  • Digit 4 needs 4 sticks.
  • Digit 5 needs 5 sticks.
  • Digit 6 needs 6 sticks.
  • Digit 7 needs 3 sticks.
  • Digit 8 needs 7 sticks.
  • Digit 9 needs 6 sticks.

Diagram 1

Step 2 — Calculate total sticks for 5108

We need to form the number 5108. We will add sticks for each digit in 5108. The number 5108 has digits 5, 1, 0, and 8.

Sticks for digit 5: =5 sticks= 5 \text{ sticks}

Sticks for digit 1: =2 sticks= 2 \text{ sticks}

Sticks for digit 0: =6 sticks= 6 \text{ sticks}

Sticks for digit 8: =7 sticks= 7 \text{ sticks}

Total sticks needed for 5108: =5+2+6+7= 5 + 2 + 6 + 7

=20= 20

20 sticks\boxed{20 \text{ sticks}}

Answer

The number of sticks required is 20.

More questions in A

Q1

Calculate the product to uncover the fact. Once you find the product, read the number in both Indian and American naming systems. Share your thoughts and questions about the fact with the class after you discover each number.

Q2

As you did before, divide the given numbers to uncover interesting facts about division. Share your thoughts and questions with the class after you uncover each number.

Q3

Share such large-number facts you know / come across with your class.

Q4

To make the digit 7, three sticks are needed.

Write or make the number 5108. How many sticks are required?

Q5

  1. Make or write the number 42,019. It would require exactly 23 sticks.

  2. Starting with 42,019, add or write two more sticks, and make a bigger number. One example is 42,078. What other numbers bigger than 42,019 can you make in this way?

  3. Preetham wants to insert the digit '1' somewhere among the digits '4', '2', '0', '1' and '9'. Where should he place the digit '1' to get the biggest possible number?

  4. What other numbers can he make by placing the digit '1'?

Q6

  1. Make or write the number 63,890.

  2. Starting with 63,890, rearrange exactly four sticks and make a bigger number. One example is 88,078. What other numbers bigger than 63,890 can you make in this way?

Q7

  1. Make any number using exactly 24 sticks or lines.

  2. What is the biggest number that can be made using 24 sticks or lines?

  3. What is the smallest number that can be made using 24 sticks or lines?

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