CBSE Class 5 Mathematics International Place Value and Large Numbers Worksheet Set 01

Answer: 424,602. Commas are placed after every three digits from the right.

Teacher's Note:
1. Count three digits from the right and put a comma, then repeat.
2. Every period in the International system has exactly three places.

Answer: 491,560,543. Commas are placed after every three digits from the right.

Teacher's Note:
1. Count three digits from the right and put a comma, then repeat.
2. Every period in the International system has exactly three places.

Answer: 793,654,182. Commas are placed after every three digits from the right.

Teacher's Note:
1. Count three digits from the right and put a comma, then repeat.
2. Every period in the International system has exactly three places.

Answer: 5,096,832. Commas are placed after every three digits from the right.

Teacher's Note:
1. Count three digits from the right and put a comma, then repeat.
2. Every period in the International system has exactly three places.

Answer: One hundred forty million nine hundred five thousand three hundred nineteen.

Teacher's Note:
1. Read each period from the left and add its name: millions, thousands, then ones.
2. The ones period is read without saying its name.

Answer: Two hundred thirty-one million six hundred thousand one hundred forty-eight.

Teacher's Note:
1. Read each period from the left and add its name: millions, thousands, then ones.
2. The ones period is read without saying its name.

Answer: Twenty-three million six thousand one hundred.

Teacher's Note:
1. Read each period from the left and add its name: millions, thousands, then ones.
2. The ones period is read without saying its name.

Answer: Thirty million eight hundred seven thousand five hundred forty-one.

Teacher's Note:
1. Read each period from the left and add its name: millions, thousands, then ones.
2. The ones period is read without saying its name.

Answer: 64,119,018. Fill any missing place with a zero.

Teacher's Note:
1. Write each period as three digits and put zeros where no value is named.
2. Check that the number of periods matches the words you read.

Answer: 105,108,007. Fill any missing place with a zero.

Teacher's Note:
1. Write each period as three digits and put zeros where no value is named.
2. Check that the number of periods matches the words you read.

Answer: 19,000,019. Fill any missing place with a zero.

Teacher's Note:
1. Write each period as three digits and put zeros where no value is named.
2. Check that the number of periods matches the words you read.

Answer: 10,003,036. Fill any missing place with a zero.

Teacher's Note:
1. Write each period as three digits and put zeros where no value is named.
2. Check that the number of periods matches the words you read.

Answer: Ten thousands. After this, the Indian system uses lakhs and crores while the International system uses hundred thousands and millions.

Teacher's Note:
1. Both systems use ones, tens, hundreds, thousands and ten thousands in the same way.
2. The difference begins from the sixth digit onwards.

Answer: 10 crore, because 100,000,000 = 10,00,00,000.

Teacher's Note:
1. Write both numbers in figures and compare the zeros.
2. This is one of the key links between the two systems.

Answer: 10 lakh, because 1,000,000 = 10,00,000.

Teacher's Note:
1. A million has six zeros and so does ten lakh.
2. Remember that 1 lakh = 100 thousand.

Answer: 10 million, because 1,00,00,000 = 10,000,000.

Teacher's Note:
1. A crore has seven zeros, so it is ten times a million.
2. Compare the numbers by writing them in figures.

Answer: 6 zeros. 30 million = 30,000,000, which has 6 zeros.

Teacher's Note:
1. Write 30 million in figures before counting the zeros.
2. Do not forget the zero that is part of 30.

Answer: 7 zeros. 8 crore = 8,00,00,000.

Teacher's Note:
1. One crore has seven zeros, and 8 only changes the first digit.
2. Write the number in figures to be sure.

Answer: 2 is in the crores place and 7 is in the lakhs place. The digits from the left are crores, ten lakhs, lakhs, ten thousands and so on.

Teacher's Note:
1. List the places from the left: crores, ten lakhs, lakhs.
2. The crores period is the eighth digit from the right.

Answer: 7 is in the ten millions place and 5 is in the hundred thousands place. The digits from the left are hundred millions, ten millions, millions, hundred thousands and so on.

Teacher's Note:
1. Write the number in its periods: 178 million, 563 thousand, 910.
2. Place names come from the period and the position inside it.

Answer: 2 crore = 2,00,00,000. Sum = 2,00,00,000 + 2,65,123 = 2,02,65,123.

Teacher's Note:
1. Add the numbers place by place after writing 2 crore in figures.
2. Keep the commas in Indian style as the question uses it.

Answer: 80 lakh = 80,00,000 = 8,000,000, which is 8 million. Since 10 lakh = 1 million, 80 ÷ 10 = 8.

Teacher's Note:
1. Use 10 lakh = 1 million.
2. Divide the lakhs by 10 to get millions.

Answer: 500 thousand = 500,000 = 5,00,000, which is 5 lakh. Since 100 thousand = 1 lakh, 500 ÷ 100 = 5.

Teacher's Note:
1. Use 1 lakh = 100 thousand.
2. Divide the thousands by 100.

Answer: 102345. The first digit cannot be 0, so start with 1, then use 0, 2, 3, 4, 5.

Teacher's Note:
1. The smallest digit that can lead a number is 1.
2. After 1, use the smallest unused digits in order.

Answer: 99999987. Use the three biggest digits 9, 8, 7 and keep 9 as many times as possible at the front.

Teacher's Note:
1. Take 9 for the leading places to keep the number large.
2. Use 8 and 7 only once each, at the end.

Answer: 72,500,000, read as seventy-two million five hundred thousand.

Teacher's Note:
1. Write the digits again in groups of three from the right.
2. The number has eight digits, so the millions period has two digits.

Answer: The digit 8 is in the thousands period, in the ten thousands place. Face value = 8, place value = 8 × 10,000 = 80,000.

Teacher's Note:
1. Face value is the digit itself.
2. Place value is the digit times the value of its place.

Answer: The digit 4 is in the crores period, in the crores place. Face value = 4, place value = 4 × 1,00,00,000 = 4,00,00,000.

Teacher's Note:
1. Count the digits from the right to reach the crores place.
2. The place value is found by multiplying the digit by the value of its place.