# DAV Class 5 Maths Chapter 1 Brain Teasers Solutions

The DAV Class 5 Maths Book Solutions Pdf and DAV Class 5 Maths Chapter 1 Brain Teasers Solutions of Numbers up to 99,99,99,999 offer comprehensive answers to textbook questions.

## DAV Class 5 Maths Ch 1 Brain Teasers Solutions

Question 1.
(a) The place value of 6 in the number 265,431 is
(i) Thousand
(ii) Ten thousand
(iii) Sixty thousand
(iv) Six hundred thousand
Solution:
(iii) sixty thousand

(b) The difference between the place value of 2 and 4 in the number 12,34,576 is
(i) 2,00,000
(ii) 2,04,000
(iii) 4,000
(iv) 1,96,000
Solution:
(iv) 1,96,000

(c) The predecessor of 35,748,600 is
(i) 24,637,599
(ii) 35,748,500
(iii) 35,748,599
(iv) 35,748,601
Solution:
(iii) 35,748,599 (d) The digit at the ten million place in the number 735,896,545 is
(i) 7
(ii) 3
(iii) 5
(iv) 2
Solution:
(ii) 3

(e) 60 million = _______ Crores.
(i) 6 crores
(ii) 60 crores
(iii) 600 crores
(iv) 10 crores
Solution:
(i) 6 crores

Question 2.
Draw an Indian place value chart showing the periods and places of any 9-digit number.
Solution: Question 3.
Draw an International place value chart showing the periods and places of any 9-digit number.
Solution: Question 4.
Look carefully at the commas between periods and then write the number names for the following:
(a) 35,68,043
Solution:
Thirty five lakh sixty eight thousand forty three.

(b) 29,568,194
Solution:
Twenty nine million five hundred sixty eight thousand one hundred ninety four.

(c) 104,601,843
Solution:
One hundred four million six hundred one thousand eight hundred forty three.

(d) 28,00,16,493
Solution:
Twenty eight crore sixteen thousand four hundred ninety three.

(e) 3,084,001
Solution:
Three million eighty four thousand one.

(f) 9,001,348
Solution:
Nine million one thousand three hundred forty eight. Question 5.
Fill in the blanks.
(a) 1 million = ____ lakhs.
Solution:
10

(b) 1 lakh = _____ thousands.
Solution:
100

(c) 1 crore = _____ millions.
Solution:
10

(d) 100 million = ______ crores.
Solution:
10

Question 6.
Complete the table by writing the period, place and place value of the encircled digit. Look carefully at the commas between periods before you answer the question. The first one is done for you. Solution:  Question 7.
Form the smallest 8-digit number using the digits 7, 5, 0, 1, 2, 9, 8, and 4. Also, write the number name of the numeral formed both in the Indian System and in the International System.
Solution:
10245789
1,02,45,789 – One crore two lakh forty five thousand seven hundred eighty nine.
10,245,789 – Ten million two hundred forty five thousand seven hundred eighty nine.

Question 8.
Write the successor (1 more) of the following:
(a) 48,36,959
Solution:
48,36,960

(b) 9,99,99,999
Solution:
10,00,00,000

(c) 56,09,999
Solution:
56,10,000 Question 9.
Write the predecessor (1 less) of the following:
(a) 56,43,000
Solution:
56,42,999

(b) 10,00,00,000
Solution:
9,99,99,999

(c) 4,84,10,000
Solution:
4,84,09,999

Question 10.
Find the sum of the place values of two fives in 35,46,52,983.
Solution: Question 1.
Rewrite the following numerals using commas in the Indian System of numeration.
(a) 5700037
Solution:
57,00,037

(b) 1010057
Solution:
10,10,057

(c) 78536110
Solution:
7,85,36,110

(d) 89001335
Solution:
8,90,01,335

(e) 374011799
Solution:
37,40,11,799

(f) 62789760
Solution:
6,27,89,760 Question 2.
Write the number name according to the Indian place value chart.
(a) 76,58,00,740
Solution:
Seventy six crore fifty eight lakh seven hundred forty.

(b) 86,52,34,143
Solution:
Eighty six crore fifty two lakh thirty four thousand one hundred forty three.

(c) 56,36,20,120
Solution:
Fifty six crore thirty six lakh twenty thousand one hundred twenty.

(d) 40,23,12,700
Solution:
Forty crore twenty three lakh twelve thousand seven hundred.

(e) 52,30,123
Solution:
Fifty two lakh thirty thousand one hundred twenty three.

(f) 9,23,52,005
Solution:
Nine crore twenty three lakh fifty two thousand five.

Question 3.
Rewrite the following numerals using commas in the International System of Numeration.
(i) 570133
(ii) 57637123
(iii) 112340125
(iv) 76000035
Solution:
(i) 570,133
(ii) 57,637,123
(iii) 112,340,125
(iv) 76,000,035 Question 4.
Write the number names for the following numerals in the International System of Numeration.
(i) 371,041,001
Solution:
Three hundred seventy one million forty one thousand one.

(ii) 7,133,940
Solution:
Seven million one hundred thirty three thousand nine hundred forty.

(iii) 803,746
Solution:
Eight hundred three thousand seven hundred forty six.

(iv) 55,320,821
Solution:
Fifty five million three hundred twenty thousand eight hundred twenty one.

Question 5.
Fill in the blanks.
(i) 10 lakhs = _____ million.
Solution:
1

(ii) ______ chart is followed by most of the countries of the world.
Solution:
International Place Value

(iii) 10 ten thousands = ______ lakh.
Solution:
1

(iv) 10 crores = ______ crore.
Solution:
1 ten

(v) The predecessor of 10,00,00,000 (ten crore) is _________
Solution:
9,99,99,999 Question 6.
The place value of 8 in the number 586,231 is
(i) Thousand
(ii) Lakh
(iii) Ten thousand
(iv) Hundred
Solution:
(iii) Ten thousand

Question 7.
The successor of 25,78,199 is
(i) 25,78,300
(ii) 25,78,200
(iii) 25,78,100
(iv) 25,78,101
Solution:
(ii) 25,78,200

Question 8.
80 million = ______ crores.
(i) 8
(ii) 80
(iii) 800
(iv) 0.8
Solution:
(i) 8

Question 9.
The digit at the hundred million places in the number 856,730,430 is
(i) 6
(ii) 5
(iii) 8
(iv) 1
Solution:
(iii) 8

Question 10.
Form the smallest 6-digit number using 7, 4, 6, 9, 0, and 1. Also, write the number name in the Indian system.
Solution:
1,04,679
One lakh four thousand six hundred seventy nine.

Question 11.
Form the largest 8-digit number using 3, 5, 9, 0, 7, 8, 4 and 6. Also, write the number name in the International system.
Solution:
98,765,430
Ninety eight million seven hundred sixty five thousand four hundred thirty.

Question 12.
Find the sum of place values of two sixes in 36,40,42,632.
Solution:
6,00,00,000; 600
Their sum is 6,00,00,600. Question 13.
Look carefully at the commas between periods and then write the number names for the following:
(a) 20,17,311
Solution:
Twenty lakh seventeen thousand three hundred eleven.

(b) 36,140,003
Solution:
Thirty six million one hundred forty thousand three.

(c) 8,01,339
Solution:
Eight lakh one thousand three hundred thirty nine.

(d) 352,170,196
Solution:
Three hundred fifty two million one hundred one hundred seventy thousand one hundred ninety six.

(e) 59,39,26,103
Solution:
Fifty nine crore thirty nine lakh twenty six thousand one hundred three.