Page 148 - Demo

Arrow-Puffin-4_Semester-1 Maths 147ESTIMATION OF PRODUCTEstimation means finding something close to the correct answer. In other words, you are approximating.You have already learnt how to estimate a sum or a difference.To estimate the product, we round off the numbers and then find the product.Example 1 : Estimate the product of 34 and 86.34 rounded off to nearest tens = 3086 rounded off to nearest tens = 90Now, multiply 30 x 90 = 2,700Estimated product of 34 and 86 is 2,700.Th H T Ox384622702402 9 2 4 (34 x 6) (34 x 80)Actual product = 2,924Example 2 : Archu bought 317 bags of candy. There were 72 pieces of candy in each bag. How many pieces of candies did Archu buy?Estimated number of candies Archu bought = 300Estimated number of candies in each bag = 70Estimated number of candies Archu bought = 300 x 70= 21,000 candiesTTh Th H T O3x17722 26139402 2 8 2 4 (317 x 2) (317 x 70)Actual product = 22,824Let's Understand Conceptual Understanding