Here I will be providing you the solution of all the try these or inText questions of class 6 Maths NCERT Chapter 1 Knowing Our Numbers for CBSE as well as other state boards like Gujarat Board
Class 6 Maths NCERT Chapter 1 Knowing our Numbers Try These Solutions
Basic
Knowledge:
Rules for determining greatest and smallest number:
Rule-1: Number with more digits
is greater than the number with less number of
digits
Rule-2: When two numbers have same number of digits, we start
comparing the digits from leftmost place until we
come across unequal digits.
Class
6 Maths NCERT Try
these page-2 (top)
Can you instantly find the greatest and the smallest numbers
in each row?
1. 382, 4972, 18, 59785, 750.
Ans. 59785 is the greatest
and 18 is the smallest.
2. 1473, 89423, 100, 5000, 310.
Ans. 89423 is the greatest
and 100 is the smallest.
3. 1834, 75284, 111, 2333, 450.
Ans. 75284 is the greatest
and 111 is the smallest.
4. 2853, 7691, 9999, 12002, 124.
Ans. 12002 is the greatest
and 124 is the smallest.
Was that easy? Why was it easy?
Yes, it was easy. It is Because we just looked
at the number of digits or the leftmost digit and found the answer.
Class
6 Maths NCERT Try
these page-2 (bottom)
Find the greatest and the smallest numbers.
(a) 4536, 4892, 4370, 4452.
Ans. 4892 is the greatest
and 4370 is the smallest.
(Explanation: Each number is
having four digits and their digits at the thousands place are the same. On
comparing the next digit of each number, we have 8> 5 > 4> 3.)
(b) 15623, 15073, 15189, 15800.
Ans. 15800 is the greatest
and 15073 is the smallest.
(c) 25286, 25245, 25270, 25210.
Ans. 25286 is the greatest
and 25210 is the smallest.
(d) 6895, 23787, 24569, 24659.
Ans. 24659 is the greatest
and 6895 is the smallest.
Class
6 Maths NCERT Try
these page-3
1. Use the given digits without repetition and make the
greatest and smallest 4-digit numbers.
(Hint: 0754 is a 3-digit number.)
(a) 2, 8, 7, 4
Ans: Greatest 4-digit
number is 8742
Smallest 4-digit number is 2478
(b) 9, 7, 4, 1
Ans: Greatest 4-digit
number is 9741
Smallest 4-digit number is 1479
(c) 4, 7, 5, 0
Ans: Greatest 4-digit
number is 7540
Smallest 4-digit number is 4057
(d) 1, 7, 6, 2
Ans: Greatest 4-digit
number is 7621
Smallest 4-digit number is 1267
(e) 5, 4, 0, 3
Ans: Greatest 4-digit
number is 5430
Smallest 4-digit number is 3045
2. Now make the greatest and the smallest 4-digit numbers by
using any one digit twice.
(Hint: Think in each case which digit will you use twice.)
(a) 3, 8, 7
Ans: Greatest 4-digit number
is 8873
Smallest 4-digit number is 3378
(b) 9, 0, 5
Ans: Greatest 4-digit
number is 9950
Smallest 4-digit number is 5009
(c) 0, 4, 9
Ans: Greatest 4-digit
number is 9940
Smallest 4-digit number is 4009
(d) 8, 5, 1
Ans: Greatest 4-digit
number is 8851
Smallest 4-digit number is 1158
3. Make the greatest and the smallest 4-digit numbers using
any four different digits with conditions as given.
(a) Digit 7 is always at ones place
Greatest: 9867
Smallest: 1027
(Note: the number cannot begin with the digit 0. Why?)
(b) Digit 4 is always at tens place
Greatest: 9847
Smallest: 1042
(c) Digit 9 is always at hundreds place
Greatest: 8976
Smallest: 1902
(d) Digit 1 is always at thousands place
Greatest: 1987
Smallest: 1023
4. Take two digits, say 2 and 3. Make 4-digit numbers using
both the digits equal number of times.
Which is the greatest number?
Ans: 3322
is the greatest number
Which is the smallest number?
Ans: 2233
is the smallest number
How many different numbers can you make in all?
Ans: We can
make 6 different numbers using two digits, say 2 and 3 equal number of times.
(These numbers are 3322, 3232, 3223, 2233, 2323
& 2332)
Class
6 Maths NCERT Try
these page-4
Think of five more situations where you compare three or more
quantities.
Situation-2:
Comparing your pocket money with your friends.
Situation-3:
Finding the batsman who scored most runs in year 2022.
Situation-4:
Arranging the weight of students of your class in Ascending order or Descending
order.
Situation-5:
Finding the fastest train from Prayagraj to Delhi.
Class
6 Maths NCERT Try
these page-5
1. Arrange the following numbers in ascending order:
(a) 847, 9754, 8320, 571
Ans: Ascending
order: 571, 847, 8320, 9754
(b) 9801, 25751, 36501, 38802
Ans: Ascending
order: 9801, 25751, 36501, 38802
2. Arrange the following numbers in descending order:
(a) 5000, 7500, 85400, 7861
Ans: Descending
order: 85400, 7861, 7500, 5000
(b) 1971, 45321, 88715, 92547
Ans: Descending
order: 92547, 88715, 45321, 1971
Make ten such examples of ascending/descending order and
solve them.
Examples:
(i) 231, 2251, 2525, 241
Ans: Ascending
order: 231, 241, 2251, 2525
Descending order: 2525, 2251, 241, 231
(ii) 5716, 55555, 57607, 5626
Ans: Ascending
order: 5626, 5716, 55555, 57607
Descending order: 57607, 55555, 5716, 5626
(iii) 7601, 6204, 43126, 3510
Ans: Ascending
order: 3510, 6204, 7601, 43126
Descending order: 43126, 7601, 6204, 3510
(iv) 803, 7520, 42857, 53009
Ans: Ascending
order: 803, 7520, 42857, 53009
Descending order: 53009, 42857, 7520, 803
(v) 8397, 532, 7523, 6789
Ans: Ascending
order: 532, 6789, 7523, 8397
Descending order: 8397, 7523, 6789, 532
(vi) 254, 210, 51745, 62036
Ans: Ascending
order: 210, 254, 51745, 62036
Descending order: 62036, 51745, 254, 210
(vii) 10201, 10000, 10005, 10050
Ans: Ascending
order: 10000, 10005, 10050, 10201
Descending order: 10201, 10050, 10005, 10000
(viii) 1075, 7065, 7016, 70564
Ans: Ascending
order: 1075, 7016, 7065, 70564
Descending order: 70564, 7065, 7016, 1075
(ix) 9890, 9108, 8019, 9090
Ans: Ascending
order: 8019, 9090, 9108, 9890
Descending order: 9890, 9108, 9090, 8019
(x) 16134, 9695, 70682, 39540
Ans: Ascending
order: 9695, 16134, 39540, 70682
Descending order: 70682, 39540, 16134, 9695
Class
6 Maths NCERT Try
these page-6
Read and expand the numbers wherever there are blanks.
|
Number |
Number Name |
Expansion |
|
20000 |
twenty
thousand |
2 ×
10000 |
|
26000 |
twenty six thousand |
2 × 10000 + 6 × 1000 |
|
38400 |
thirty eight thousand four hundred |
3 × 10000 + 8 × 1000 + 4 × 100 |
|
65740 |
sixty five thousand seven hundred
forty |
6 × 10000 + 5 × 1000 + 7 × 100 + 4 ×
10 |
|
89324 |
eighty nine thousand three hundred
twenty four |
8 × 10000 + 9 × 1000 + 3 × 100 + 2 ×
10 + 4 × 1 |
|
50000 |
Fifty thousand |
5 × 10000 |
|
41000 |
Forty one thousand |
4 × 10000 + 1 × 1000 |
|
47300 |
Forty seven thousand
three hundred |
4 × 10000 + 7 × 1000 + 3
× 100 |
|
57630 |
Fifty seven thousand six
hundred thirty |
5 × 10000 + 7 × 1000 + 6
× 100 + 3 × 10 |
|
29485 |
Twenty nine thousand
four hundred eighty five |
2 × 10000 + 9 × 1000 + 4
× 100 + 8 × 10 + 5 × 1 |
|
29085 |
Twenty nine thousand eighty
five |
2 × 10000 + 9 × 1000 + 8
× 10 + 5 × 1 |
|
20085 |
Twenty thousand eighty
five |
2 × 10000 + 8 × 10 + 5
×1 |
|
20005 |
Twenty thousand five |
2 × 10000 + 5 × 1 |
Class
6 Maths NCERT Try
these page-7
Read and expand the numbers wherever there are blanks.
|
Number |
Number Name |
Expansion |
|
3,00,000 |
three lakh |
3 × 1,00,000 |
|
3,50,000 |
three lakh fifty thousand |
3 × 1,00,000 + 5 × 10,000 |
|
3,53,500 |
three lakh fifty three thousand five hundred |
3 × 1,00,000 + 5 × 10,000 + 3 × 1000 + 5 × 100 |
|
4,57,928 |
Four
lakh fifty seven thousand nine hundred twenty eight |
4 × 100000 + 5 × 10000 + 7 × 1000 + 9
× 100 + 2 × 10 + 8 × 1 |
|
4,07,928 |
Four
lakh seven thousand nine hundred twenty eight |
4
× 100000 + 7 × 1000 + 9 × 100 + 2 × 10 + 8 × 1 |
|
4,00,829 |
Four
lakh eight hundred twenty nine |
4
× 100000 + 8 × 100 + 2 × 10 + 9 × 1 |
|
4,00,029 |
Four
lakh twenty nine |
4
× 100000 + 2 × 10 + 9 × 1 |
Complete the pattern:
9 + 1 = 10
99 + 1 = 100
999 + 1 = 1000
9,999 + 1 = 10,000
99,999 + 1 = 1,00,000
9,99,999 + 1 = 10,00,000
99,99,999 + 1 = 1,00,00,000
Class
6 Maths NCERT Try
these page-8 (top)
1. What is 10 – 1 =? Ans: 9
2. What is 100 – 1 =? Ans: 99
3. What is 10,000 – 1 =?
Ans: 9,999
4. What is 1,00,000 – 1 =?
Ans: 99,999
5. What is 1,00,00,000 – 1 =? Ans: 99,99,999
(Hint: Use the said pattern.)
Class
6 Maths NCERT Try
these page-8 (bottom)
1. Give five examples where the number of things counted
would be more than 6-digit number.
2. Starting from the greatest 6-digit number, write the
previous five numbers in descending order.
3. Starting from the smallest 8-digit number, write the next
five numbers in ascending order and read them
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