In Text Questions (Text Book Page No.26,28,30,34,36) - Chapter 2 - Numbers - Term 1 - 5th Maths Guide Samacheer Kalvi Solutions

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Activity (Text Book page No.26)

Answer:

Fill in the correct numbers in the following tables.

Answer:

Activity: I (Text Book page No.28)
The Abacus shows the number 34,284

Number name:
Expanded form: 3 Ten thousands $+4$ thousands $+2$ hundreds $+8$ tens $+4$ ones.
Answer:
Number name: Thirty four thousand two hundred and eighty four.
Expanded form: 3 Ten thousands $+4$ thousands $+2$ hundreds $+8$ tens $+4$ ones.
$=30,000+4000+200+80+4$
$=3 \times 10,000+4 \times 000+2 \times 100+8 \times 10+4 \times 1$

Try These (Text Book page No.29)
How many thousands are there in $3,45,789$ ?
Answer:
345 thousands
 

Activity: 2 (Text Book page No.29)
Look at the Abacus and fill in the blanks.

Number:
Number name:
Expanded form: 5 ten lakhs $+$ lakhs + ten thousands $+1$ $+2$
5 tens + ones $+200+50+8$
Answer:

Number: $52,41,258$
Number Name: Fifty two lakhs forty one thousands two hundred and fifty eight. Expanded form:
$=5$ ten lakhs $+2$ lakhs $+4$ ten thousands $+1 x$ thousand $+2$ hundreds $+5$ tens $+8$ ones $=5000000+200000+40000+\mathrm{IQOO}+200+50+8 .$

Activity: 3 (Text Book page No.30)
Look at the Abacus and fill in the blanks.

Given Number: $6,42,35,415$
Number Name: Six crores forty two lakhs thirty five thousands four hundred and fifteen
Expanded form: 6 Crores $+4$ ten lakhs $+2$ lakhs $+3$ ten thousands $+5$ Thousands $+4$ hundreds $+$ 1 ten $+5$ ones.
$=6,00,00,000+40,00,000+2,00,000+30,000+5,000+400+10+5$. $=6 \times 1,00,00,000+4 \times 10,00,000+2 \times 1,00,000+3 \times 10,000+5 \times 10,000+4 \times 100+1 \times 10+$ $5 \times 1$.
 

Activity (Text Ronk page No.30)
Write the place value of 7 and 1 for the given numbers.
a. $81,70,453$
b. $3,46,710$
c. $1,87,13,971$
Answer:
a. $81,70,453$
The place value of 7 is $7 \times 10,000=70,000$
The place value of 1 is $1 \times 1.00 .000=1.00 .000$
b. $3,46,710$
The place value of 1 is $1 \times 10=10$
The place value of 7 is $7 \times 100=700$
c. $1,87,13,971$
The place value of 1 is $1 \times 1=1$
The place value of 7 is $7 \times 10=70$
The place value of 1 is $1 \times 10,000=10,000$
The place value of 7 is $7 \times 1,00,000=7,00,000$
The place value of 1 is $1 \times 1,00,00,000=1,00,00,000$

Given number:
Number Name: Expanded form: 6 crores $+\ldots$ Ten Iakhs $+\ldots$ Lakhs $+3 \ldots$ Thousands $+$ $+1$ Ten $+5$ ones. $=6,00,00,000+40,00,000+$ $+5000+400+$ $+5$ $\times 100+1 \times 10+$

Try These (Text Book page No.34)

1. 3,002 ____ 8,002

2. 43,731 ____ 44,371

3. 43,115 ____ 43,511

4. 13,435 ____ 13,4753

Answer:

1. 3,002 ____ 8,002 = 3,002 < 8,002

2. 43,731 ____ 44,371 = 43,731 < 44,371

3. 43,115 ____ 43,511 = 43,115 < 43,511

4. 13,435 ____ 13,4753 = 13,435 < 13,4753

Activity (Text Book page No.34)
1. Form the smallest and greatest five digit numbers using the given digits once.
(a) $7,1,0,5,4$
(b) $3,4,7,0,9$
(c) $9,7,1,6,4$
(d) $4,5,9,6,7$
Answer:
(a) $7,1,0,5,4$
Smallest number $=10,457$
Greatest number $=75,410$
(b) $3,4,7,0,9$
Smallest number $=30,479$
Greatest number $=97,430$
(c) $9,7,1,6,4$
Smallest number $=14,679$
Greatest number $=97,641$
(d) $4,5,9,6,7$
Smallest number $=45,679$
Greatest number $=97,654$
2. Write the smallest numbers in the fruit and the greatest number in the flower.
(a) $45678,145,7829$
(b) $23,8873,88738,883$
Answer:

Try These (Text Book page No.36)
1. Arrange the following numbers in the ascending order and descending order.
(i) 33,$270 ; 1,078 ; 137 ; 27,935$
(ii) 44,$918 ; 32,113 ; 23,112 ; 42,231$
(iii) 75,$343 ; 30,475 ; 43,452 ; 13,055$
(iv) $733 ; 34,946 ; 35,945 ; 23,745$
Answer:
(i) 33,$270 ; 1,078 ; 137 ; 27,935$
Ascending order : $137,1,078,27,935,33,270$
Descending order $533,270,27,935,1,078,137$
(ii) 44,$918 ; 32,113 ; 23,112 ; 42,231$
Ascending order : 23,112, 32,113, 42,231, 44,918
Descending order : 44,918, 42,231, 32,113, 23,112
(iii) 75,$343 ; 30,475 ; 43,452 ; 13,055$
Ascending order : $13,055,30,475,42,452,75,343$
Descending order ; $75,343,42,452,30,475,13,055$
(iv) $733 ; 34,946 ; 35,945 ; 23,745$
Ascending order: $733,23,745,34,946,35,945$
Descending order ; $35,945,34,946,23,745,733$