![]() How many units of electricity is used each day in the locality? Each house uses 278 units of electricity each day. What is the total number of marbles in the museum? If each packet has 37 chocolates, then how many chocolates are there in the shop. A shopkeeper has 92 packets of chocolates. Choose the best estimate and tick the right answer. How many crayons does he have in all?įollowing by rounding off the 2 and 3-digit numbers to the nearest tens.ģ. Ron has a crayon box containing 12 colors. To solve any word problem, we need to readĮach word carefully and select numbers carefully from the question to solve it.ġ. (ii) 3 4 1 × 2 6 7 341 is rounded down to 340, the nearest ten ↓ ↓ 3 4 0 × 2 7 0 267 is rounded up to 270, the nearest ten = 91,800 The estimated product is 91,800 Estimate the following product by rounding numbers to the nearest (i) Hundred (ii) Ten ‘341 × 267’ Solution: Rounded up to the nearest hundred, i.e., 400 while 326 is rounded downģ 5 8 × 3 2 6 358 is rounded up to 400 ↓ ↓ 4 0 0 × 3 0 0 326 is rounded down to 300 = 1 2 0 0 0 0ĥ. ![]() One number is rounded up and the other is rounded down. Estimate the product: 358 × 326 Solution: Estimate the product: 74 × 85 Solution:ħ 4 × 8 5 74 is rounded up to 80 ↓ ↓ 7 0 × 9 0 85 is rounded down to 90 = 6 3 0 0Ĥ. Estimate the product: 47 × 84 Solution:Ĥ 7 × 8 4 47 is rounded up to 50 ↓ ↓ 5 0 × 8 0 84 is rounded down to 80 = 4 0 0 0 So, the estimated product of 148 × 14 = 1500Ĭonsider the following examples on estimating products:ġ. Estimate the product: 42 × 57 Solution:Ģ.
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