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- Point, Line Segment, Line and Ray
- Definition of a Ray
1. Numbers
1.1.3. Numbers on Abacus
1.4.1. Successor of a Number
1.4.2. Predecessor of a Number
1.5. Skip Counting
1.7.1. Ascending Order of Numbers
1.7.2. Descending Order of Numbers
1.8. Forming Numbers
3. Addition
4. Subtraction
7. Division
7.7.1. Division of a Number by One
7.7.3. Division of a Number by Zero
7.7.4. Dividing Zero by a Number
7.10. Division by 10
8. Money
8.1. Currency
8.4. Convert to Paise
8.4.1. Convert Rupees into Paise
8.5. Convert from Paise
8.6. Addition of Money
8.7. Subtraction of money
9. Fractions
11.1. Metric Units of Weight
11.2. Weighing Objects
11.6. Addition of Weights
11.7. Subtraction of Weights
13. Time
13.1. Clocks
13.1.2. Read Time on Clocks
13.1.2.1. Read Time on Analogue Clocks
14. Calendar
14.1.1. Days of the Week
14.1.2. Months of the Year
14.1.4. Relation between Days and Weeks
14.1.5. Century, Leap and Ordinary Years
14.2. Dates
15. Geometry
15.1.2. Types of Lines
15.1.2.1. Straight and Curved Lines
15.1.4. Measure Line Segments
16. Symmetry
Class 3 NCERT (CBSE and ICSE) Definition of a Ray
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