Estimation of numbers. Mathematics CBSE, Class 6: lessons, tests, tasks.

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1.	What is estimation
2.	Estimate to the nearest tens by rounding off
3.	Estimate to the nearest hundreds by rounding off
4.	Estimate to the nearest thousands by rounding off
5.	Estimating the outcomes
6.	Estimating the sum or difference
7.	Estimate the products or quotients
8.	Using brackets and how to use it
9.	Expanding brackets
10.	Roman Numerals

1.	Rounding off to nearest tens and hundreds Difficulty: easy	3
2.	Fill in the nearest hundreds and thousands Difficulty: easy	3
3.	Check and say true or false Difficulty: easy	2
4.	Estimate the sum Difficulty: easy	3
5.	Calculate the difference in population Difficulty: easy	3
6.	Determine the quotient Difficulty: easy	3
7.	Use bracket to convert the sentence Difficulty: easy	3
8.	Convert the roman numerals to numbers Difficulty: easy	3
9.	Determine the reasonable estimation (sum) Difficulty: medium	4
10.	Choose the reasonable estimation (product) Difficulty: medium	4
11.	Calculate estimated sum and difference of two numbers Difficulty: medium	2
12.	Find the number with the help of its estimated value Difficulty: medium	4
13.	Find the estimated cost Difficulty: medium	4
14.	Caculate the estimated amount received Difficulty: medium	4
15.	Transform the numbers to roman numerals Difficulty: medium	4
16.	Find the product by expanding the brackets in it Difficulty: medium	4
17.	Determine nearest 10, 100, 1000 Difficulty: hard	5
18.	Estimate the sum and find the difference of acual and estimated value Difficulty: hard	5
19.	Estimate by general rule Difficulty: hard	5
20.	Determine the product by expanding the brackets in it Difficulty: hard	5
21.	Add and subtract the roman numerals Difficulty: hard	5

1.	Training test Difficulty: medium	12
2.	Training test Difficulty: medium	14

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Estimation of numbers