Chapter 1
Chapter 1: Large Numbers Around Us
Read, compare, estimate and use large numbers in Indian and international place-value contexts.
4 topics12 skillsWorksheets available
Practice questionsWorksheets availableMore practice coming soonProgress tracking after sign-in
Topic: Indian Place Value System
3 skillsSkill: Read and write lakh and crore numbersRead and write large numbers using periods, commas and number names in the Indian system.
Practice areaSkill: Convert between numerals and number namesConvert large numerals to number names and number names to numerals accurately.
Practice areaSkill: Identify place value in large numbersFind the place value and face value of digits in numbers up to crores.
Practice areaTopic: International Place Value System
3 skillsSkill: Read and write million and billion numbersRead and write large numbers using thousands, millions and billions.
Practice areaSkill: Compare Indian and international systemsRelate lakhs/crores with millions/billions and avoid common period-placement errors.
Practice areaSkill: Use commas correctly in both systemsPlace commas correctly for Indian and international notation.
Practice areaTopic: Comparing and Ordering
3 skillsSkill: Compare large numbersCompare large numbers using place value rather than number length alone.
Practice areaSkill: Order large numbersArrange large numbers in ascending or descending order from real-life data.
Practice areaSkill: Find numbers between two large numbersIdentify possible whole numbers that lie between two given large numbers.
Practice areaTopic: Estimation and Rounding
3 skillsSkill: Round large numbers to useful placesRound numbers to nearest ten, hundred, thousand, lakh or million as required.
Practice areaSkill: Estimate sums and differencesUse rounded numbers to estimate totals and differences in practical contexts.
Practice areaSkill: Judge reasonableness of large-number answersCheck whether a large-number result is reasonable using estimation.
Practice area