Exercise 2.7 - Chapter 2 - Numbers - Term 1 - 4th Maths Guide Samacheer Kalvi Solutions

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Ex $2.7$
Question 1.
Add the following numbers.
(a) $216,3422,4019,497$
(b) $1002,2347,1976,2005,2007$
(c) $1978,1965,2704,473$
Answer:
(a) $216,3422,4019,497$

Question $2 .$
Add the total amount of the following 4 piggy banks.

Answer:
$\text { ₹ } 978+₹ 3796+₹ 2374+₹ 1957=\S 9105$

Question $3 .$
The sum of $1215+2367+1673+3120=$
(a) 8585
(b) 8225
(c) 8375
(d) 8285
Answer:
(c) 8375

Question 4 .
$2076+276+2974+1751=$
(a) 9561
(b) 7077
(c) 7377
(d) none of these
Answer:
(b) 7077
$2076+276+2974+1751=7077$

Question $5 .$
What is the sum of five hundreds and fifteen tens?
(a) 650
(b) 550
(c) 5150
(d) 6150
Answer:
(a) 650
Five hundred $=500$
Fifteen Tens $=150$
sum $=500+150=650$

Question $6 .$
The sum of the greatest 3 digit number and the smallest 4 digit number is
(a) 1999
(b) 1099
(c) 1990
(d) 9999
Answer:
(a) 1999
3 - digit greatest number $=999$
$4-$ digti smallest number $=1000$
sum $=999+1000$

Question $7 .$
$9999+1=$
(a) 10,000
(b) 1000
(c) 1001
(d) 10001
Answer:
(a) 10,000
 

Question $8 .$
In a village the number of males is 4154 and the number of temales is 4221 . Find the total population in the village?
Answer:
Males $=4154$
females $=4221$
Total population $=4154+4221$
$=8375$

Question $9 .$
A refrigerator costs $\mathrm{f} 6543$ and a bVb player costs Rs 3412 . What is the total cost?
Answer:
Cost of refrigerator $=₹ 6543$
Cost of DVD player $=₹ 3412$
Total $=₹ 6543+₹ 3412$
$=₹ 9955$