Exercise 2.1 - Chapter 2 Numbers Term 3 5th Maths Guide Samacheer Kalvi Solutions - SaraNextGen [2024-2025]

Updated On May 15, 2024

By SaraNextGen

Question 1. : Chapter 2 - Numbers - Term 3 - 5th Maths Guide Samacheer Kalvi Solutions
Fill in the blanks
(i) Estimation of 27 to its nearest Tens place is
Answer:
30
(ii) Estimation of 65 to its nearest Tens place is
Answer:
70
(iii) The cost of $1 \mathrm{~kg}$ pomegranate is? 93. Then the estimated cost is
Answer:
90
(iv) Estimation of 76 bananas to its nearest Tens place is
Answer:
80

Question 2.
There are 27 girls and 38 boys in a class. Find the sum and estimate the sum to its nearest Tens place.
Ans:
Number of girls $=30$
Number of boys $=40$

$\begin{aligned}
&\text { Sum }=30+40 \\
&=70
\end{aligned}$

Question $3 .$
If the cost of a geometry box is $₹ 53$ and the cost of a note book is $₹ 36$, then estimate their cost to its nearest Tens place and find the sum. Also, find the difference between the estimated value and the actual value.
Answer:

Question $4 .$
If Kavitha has 93 pictures and she gave 42 pictures to her friend Neela, then estimate the picutres to its nearest Tens place and find their difference. Also, find the difference between actual value and the estimated value,
Answer:

Question $5 .$
The cost of a pen is ₹ 32. Find the cost of 6 pens and estimate it to its nearest Tens place.
Answer:
Cost of a pen $=₹ 32$
Cost of 5 pens $=32 \times 6=192$.

Question $6 .$
Arun has ₹ 47 , Raja has nearest Hundreds place. ₹ 54. Find the sum and estimate it to its nearest Hundreds place.
Answer:
Money A run has =Rs. 47
Money Raja has = Rs. 54
$\begin{aligned}
&\text { Sum }=\text { Rs. } 47+\text { Rs } 54=101 \\
&\text { Sum } \sim 100
\end{aligned}$

Question 7.
There are 21 chocolate bars in a packet. Find the number of chocolate bars in 9 such packets and estimate it to its nearest Hundreds place.
Answer:
Number of chocolate bars in a packet $=21$
Number of chocolate bars in 9 pockets $=21 \times 9=189$
Nearest hundred $=200$
 

Question $8 .$
132 peanut candies are shared equally with 12 students. Find the share for one student and estimate it to its nearest Tens place.
Answer:
Number of peanut candies $=132$
Number of students $=12$
Number of candies one student get $=132 \div 12=11$
Nearest tens $=10$