6th Maths : Term 1 Unit 1 : Numbers
Text Book Back Exercises Questions with Answers, Solution
Exercise 1.3
1. Fill in the blanks.
(i) If Arulmozhi saves ₹ 12 per day, then she saves ₹ ________ in 30 days.
(ii) If a person ‘A’ earns ₹ 1800 in 12 days, then he earns ₹ ________ in a day.
(iii) \( 45 \div (7 + 8) - 2 = \) ________.
2. Say True or False.
(i) \( 3 + 9 \times 8 = 96 \)
(ii) \( 7 \times 20 - 4 = 136 \)
(iii) \( 40 + (56 - 6) \div 2 = 45 \)
3. The number of people who visited the Public Library for the past 5 months were 1200, 2000, 2450, 3060 and 3200. How many people visited the library in the last 5 months?
Solution: Number of people visited the Library in the last 5 months.
\( 1200 + 2000 + 2450 + 3060 + 3200 = 11,910 \)
11,910 people visited
4. Cheran had a bank savings of ₹ 7,50,250. He withdrew ₹ 5,34,500 for educational purpose. Find the balance amount in his account.
Solution:
Bank Savings = 7,50,250
Withdraw = 5,34,500
___________________
= 2,15,750
Balance amount = Rs. 2,15,750
5. In a cycle factory, 1560 bicycles were manufactured every day. Find the number of bicycles manufactured in 25 days.
Solution:
Number of bicycles manufactured for one day = 1560
For 25 days = \( 1560 \times 25 \)
= 39,000
6. ₹ 62500 was equally distributed as a New Year bonus for 25 employees of a company. How much did each receive?
Solution:
Total Amount = Rs. 62500
No. of employees = 25
For one employee = \( 62500 / 25 \)
= 2500
Each employee receive = Rs. 2500
7. Simplify the following numerical expressions:
(i) \( (10 + 17) \div 3 \)
Solution:
\( 27 \div 3 \)
\( 27 / 3 = 9 \)
\( (10 + 17) \div 3 = 9 \)
(ii) \( 12 - [3 - \{6 - (5 - 1)\}] \)
Solution:
\( 12 - [3 - (6 - 4)] \)
\( 12 - [3 - 2] \)
\( 12 - 1 = 11 \)
\( 12 - [3 - \{6 - (5 - 1)\}] = 11 \)
(iii) \( 100 + 8 \div 2 + \{(3 \times 2) - 6 \div 2\} \)
Solution:
\( = 100 + 8 \div 2 + \{6 - 3\} \)
\( = 100 + 8 \div 2 + 3 \)
\( = 100 + 4 + 3 \)
\( = 107 \)
\( 100 + 8 \div 2 + \{(3 \times 2) - 6 \div 2\} = 107 \)
Objective Type Questions
8. The value of \( 3 + 5 - 7 \times 1 \) is ________.
(a) 5 | (b) 7 | (c) 8 | (d) 1
Answer: (d) 1
9. The value of \( 24 \div \{8 - (3 \times 2)\} \) is
(a) 0 | (b) 12 | (c) 3 | (d) 4
Answer: (b) 12
10. Use BIDMAS and put the correct operator in the box.
\( 2 \text{ _____ } 6 - 12 \div (4 + 2) = 10 \)
(a) + | (b) – | (c) × | (d) ÷
Answer: (c) ×
Answers Summary: Exercise 1.3
1) (i) 360 (ii) 150 (iii) 1
2) (i) False (ii) True (iii) False
3) 11910
4) 2,15,750
5) 39,000 bicycles
6) ₹ 2500
7) (i) 9 (ii) 11 (iii) 107
8) (d) 1
9) (b) 12
10) (c) ×