Methodical recommendation:
Theory
| Number | Name | Description |
|---|---|---|
| 1. | Sum of first 'n' natural numbers | To learn about finding sum of first n natural numbers |
| 2. | Cheatsheet | To remember important points about sum of A.P |
Practice Questions
| Number | Name | Type | Difficulty | Marks | Description |
|---|---|---|---|---|---|
| 1. | Sum of first n natural numbers | Other | easy | 2 m. | To apply the formula for the sum of the first n natural numbers to evaluate the sum of a given series. |
| 2. | TBQ - Sum of objects in rows | Other | easy | 2 m. | To apply the formula for the sum of the first n natural numbers to find the total in a real-life pattern that increases by one each time. |
| 3. | Sum of consecutive integers | Other | medium | 2 m. | To find the sum of a series that does not start from one by subtracting the sum of the leading terms from the sum up to the last term. |
| 4. | Assertion and Reasoning | Other | medium | 1 m. | To evaluate an assertion and its reason by using the sum of the first n multiples of a number to judge whether each statement is true and how they are related. |
| 5. | Number of terms | Other | medium | 3 m. | To apply the formula for the sum of the first n natural numbers to find the number of terms for a given sum, by forming and solving a quadratic equation. |
| 6. | Sum of consecutive numbers | Other | medium | 3 m. | To find the sum of consecutive integers in a given range by subtracting the sum of the leading terms from the sum up to the last term. |
| 7. | TBQ - Sum of positive integers | Other | hard | 4 m. | To find the sum of the three-digit multiples of a number by forming an A.P., finding its number of terms and applying the sum formula. |
| 8. | TBQ - Finding the Minimum Number of Terms for a Required Sum | Other | hard | 5 m. | To apply the formula for the sum of the first n natural numbers to find the smallest n for which the sum exceeds a given value, by forming an inequality and testing values. |
| 9. | CBQ - Finding the Total Number of Parcels Delivered | Other | hard | 4 m. | To apply the formula for the sum of the first n natural numbers to find the number of days required to reach a given total in a real-life delivery pattern. |