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Methodical recommendation:
Theory
| Number | Name | Description |
|---|---|---|
| 1. | What is estimation | Learn about estimation and its uses. |
| 2. | Estimate to the nearest tens by rounding off | Learn how to estimate the numbers to nearest tens place. |
| 3. | Estimate to the nearest hundreds by rounding off | Learn how to estimate the number to nearest hundreds. |
| 4. | Estimate to the nearest thousands by rounding off | Learn how to estimate the number to nearest thousands. |
| 5. | Estimating the outcomes | Discuss about estimation of outcomes of numbers. |
| 6. | Estimating the sum or difference | Let us understand how to estimate the sum and difference |
| 7. | Estimate the products or quotients | Understand how estimation is done for multiplication and division. |
| 8. | Using brackets and how to use it | Let us discuss where the brackets are used. |
| 9. | Expanding brackets | Learn how to apply the expansion of brackets for product of number. |
| 10. | Roman Numerals | Know about Roman numerals. |
Practice Questions
| Number | Name | Type | Difficulty | Marks | Description |
|---|---|---|---|---|---|
| 1. | Rounding off to nearest tens and hundreds | 1st type - receptive | easy | 3 m. | Practice a problem on estimating the numbers to nearest tens and hundreds by its rule. |
| 2. | Fill in the nearest hundreds and thousands | 1st type - receptive | easy | 3 m. | Practice a problem on rouding off the number to nearest ten thousand and lakhs. |
| 3. | Check and say true or false | 1st type - receptive | easy | 2 m. | Try to estimate the value and choose the correct option. |
| 4. | Estimate the sum | 1st type - receptive | easy | 3 m. | Practice a problem on finding estimated sum. |
| 5. | Calculate the difference in population | 1st type - receptive | easy | 3 m. | Apply the concept of estimation and find the difference. |
| 6. | Determine the quotient | 1st type - receptive | easy | 3 m. | Apply the concept of estimation to find the quotient of numbers. |
| 7. | Use bracket to convert the sentence | 2nd type - interpretation | easy | 3 m. | Try inserting brackets in the provided situation. |
| 8. | Convert the roman numerals to numbers | 1st type - receptive | easy | 3 m. | Transfer roman numerals to usual numbers. |
| 9. | Determine the reasonable estimation (sum) | 2nd type - interpretation | medium | 4 m. | Select the meaningful estimation and hence determine the estimated sum. |
| 10. | Choose the reasonable estimation (product) | 2nd type - interpretation | medium | 4 m. | Select the meaningful estimation and hence determine its product. |
| 11. | Calculate estimated sum and difference of two numbers | 2nd type - interpretation | medium | 2 m. | Practice problem on finding sum and difference of two numbers. |
| 12. | Find the number with the help of its estimated value | 2nd type - interpretation | medium | 4 m. | Apply the procedure of finding estimated value in reverse and get the number. |
| 13. | Find the estimated cost | 2nd type - interpretation | medium | 4 m. | Apply the general rule of estimation and find the cost. |
| 14. | Caculate the estimated amount received | 2nd type - interpretation | medium | 4 m. | Apply the general rule and estimate the cost for each people. |
| 15. | Transform the numbers to roman numerals | 1st type - receptive | medium | 4 m. | Practice a problem on transforming roman numerals to numbers and vice versa. |
| 16. | Find the product by expanding the brackets in it | 2nd type - interpretation | medium | 4 m. | Solve the product of numbers by expanding its brackets. |
| 17. | Determine nearest 10, 100, 1000 | 2nd type - interpretation | hard | 5 m. | Rounding off the provided numbers to tens, hundreds and thousands places. |
| 18. | Estimate the sum and find the difference of acual and estimated value | 3rd type - analysis | hard | 5 m. | Caculate estimated total amount deposited and verify with actual amount. |
| 19. | Estimate by general rule | 3rd type - analysis | hard | 5 m. | Apply the general rule for estimation and find the product values. |
| 20. | Determine the product by expanding the brackets in it | 3rd type - analysis | hard | 5 m. | Practice problem on expanding brackets and hence find the product. |
| 21. | Add and subtract the roman numerals | 3rd type - analysis | hard | 5 m. | Split the roman symbols and find the number value. |
Questions for Teacher Use
| Number | Name | Type | Difficulty | Marks | Description |
|---|---|---|---|---|---|
| 1. | Express the provided expression interms of situation | Other | medium | 5 m. | Think and write the scenario where the expression can happen. |
| 2. | Fill in the nearest ten thousand and lakh | Other | easy | 3 m. | Practice problem on finding nearest ten thousand and lakh. |
| 3. | Product the numbers by estimation | Other | easy | 3 m. | Use the general rule and estimate the product. |
| 4. | Perform subtraction by estimation | Other | easy | 3 m. | Apply general rule for estimation and find the difference of two numbers. |
| 5. | Estimate the product of numbers | Other | medium | 3 m. | Practice problem on estimation of numbers and product it by using general rule. |
| 6. | Rounding the number to nearest lakh | Other | medium | 4 m. | Apply the general rule and express the given number in nearest lakh. |
| 7. | Substitute the roman numerals | Other | medium | 4 m. | Practice problem on roman numerals. |
| 8. | Rounding off the number to given rule | Other | hard | 4 m. | Estimate the numbers to nearest tens, hundredss, lakhs and crores by using general rule. |
| 9. | Determine the sum and difference of numbers | Other | hard | 5 m. | Estimate sum, difference as per the rule given and check it is reasonable. |
Tests
| Number | Name | Recomended time: | Difficulty | Marks | Description |
|---|---|---|---|---|---|
| 1. | Training test | 00:15:00 | medium | 12 m. | |
| 2. | Training test | 00:20:00 | medium | 14 m. |
Periodic assessments
| Number | Name | Recomended time: | Difficulty | Marks | Description |
|---|---|---|---|---|---|
| 1. | Homework | 00:20:00 | medium | 9 m. | |
| 2. | Homework | 00:20:00 | medium | 16 m. | |
| 3. | Homework | 00:20:00 | medium | 14 m. | |
| 4. | Homework | 00:20:00 | medium | 16 m. | |
| 5. | Progress test | 00:20:00 | medium | 12 m. | |
| 6. | Progress test | 00:20:00 | medium | 13 m. |
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