4th Maths : Term 3 Unit 5 : Money
Exercise 5.5 (Estimation of the Total Cost)
1. Meera went to vegetable shop. She bought brinjal for ₹ 29.75, drumstick for ₹ 14.60, radish for ₹ 34.50 and carrot for ₹ 42.80. Find the total amount and estimate to the nearest one rupee?
2. Vasu bought car toy for ₹ 37, Bear toy for ₹ 24, monkey toy for ₹ 86. Find the estimated cost and find the difference in estimation close to nearest 10 rupees.
Answer:
Difference in estimation = \(150 - 147 = ₹3\)
Difference in estimation close to nearest 10 rupees = 0
3. In the book shop Manibalan bought Bharathiyar book for ₹ 26.40, Gandhi book for ₹ 18.60, Abdul kalam book for ₹ 43.70 and Kumaran book for ₹ 51.90. Find the estimated cost and difference in estimation closes to nearest one rupee.
Estimated cost = \(₹142\)
Difference in estimation = \(₹142 - ₹140.60 = ₹1.40\)
Difference in estimation closes to nearest one rupee = \(₹2\)
4. Geetha bought Jasmine for ₹ 37, Rose for ₹ 58, Mullai for ₹ 26 and Marigold for ₹ 82. Find the estimated cost and difference in estimation, close to the nearest ten rupees.
Estimated cost = \(₹210\)
Difference in estimation = \(₹210 - ₹203 = ₹7\)
Estimation close to the nearest ten rupees = \(₹10\)