Class 5 Maths Magic
Unit 1 – My Number World
Page 4 – Do These
Do These – Solutions
1. Read the numbers:
(a) 65,14,852
(b) 29,36,429
(a) 65,14,852
Answer: Sixty five lakh fourteen thousand eight hundred and fifty two.
(b) 29,36,429
Answer: Twenty nine lakh thirty six thousand four hundred and twenty nine.
2. Write any five 7-digit numbers using the digits 1, 2, 5 and 8. Express them in words.
1) 12,58,258 – Twelve lakh fifty eight thousand two hundred and fifty eight.
2) 15,82,821 – Fifteen lakh eighty two thousand eight hundred and twenty one.
3) 21,58,582 – Twenty one lakh fifty eight thousand five hundred and eighty two.
4) 25,81,128 – Twenty five lakh eighty one thousand one hundred and twenty eight.
5) 82,15,512 – Eighty two lakh fifteen thousand five hundred and twelve.
2) 15,82,821 – Fifteen lakh eighty two thousand eight hundred and twenty one.
3) 21,58,582 – Twenty one lakh fifty eight thousand five hundred and eighty two.
4) 25,81,128 – Twenty five lakh eighty one thousand one hundred and twenty eight.
5) 82,15,512 – Eighty two lakh fifteen thousand five hundred and twelve.
Class 5 Maths Magic
Unit 1 – My Number World
Exercise – 1 (Page 6)
Solutions
1. Identify the biggest number.
Answer: D) 7,96,581
2. What is the place value of 9 in 9,08,865?
Answer: 9,00,000 (Nine lakh).
3. Write in words.
a) 1,25,602 – One lakh twenty five thousand six hundred and two.
b) 5,59,946 – Five lakh fifty nine thousand nine hundred and forty six.
c) 9,57,524 – Nine lakh fifty seven thousand five hundred and twenty four.
b) 5,59,946 – Five lakh fifty nine thousand nine hundred and forty six.
c) 9,57,524 – Nine lakh fifty seven thousand five hundred and twenty four.
4. Write in numerals.
a) Fourteen lakh thirty five thousand and fifteen = 14,35,015
b) Seventy four lakh sixty two thousand four hundred and sixty five = 74,62,465
b) Seventy four lakh sixty two thousand four hundred and sixty five = 74,62,465
5. Read and answer.
House cost: ₹45,87,000 = Forty five lakh eighty seven thousand.
Plot cost: ₹18,56,000 = Eighteen lakh fifty six thousand.
Total cost: ₹64,43,000 = Sixty four lakh forty three thousand.
Plot cost: ₹18,56,000 = Eighteen lakh fifty six thousand.
Total cost: ₹64,43,000 = Sixty four lakh forty three thousand.
