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Class 4 maths – Chapter3: Addition and Subtraction

Addition Sum and Addends- When we add many numbers, then each of the numbers taken for addition is called an addend and the answer obtained after addition is called the sum. Addition properties- Property1- When two numbers are added the sum is greater than each number. Property2- If one added is 0, the sum is equal to other added Property3- The addition is independent of...

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Class 4 maths – Chapter1: Roman Numerals

Roman numerals rule Rule1- If a smaller numeral is written before (left) of a larger numeral, its value is always subtracted from larger numeral. Rule2- Repetition of numerals means addition. Rule3- If a smaller numeral is written after (right) of a larger numeral, its value is always added to larger numeral. Rule4- If a smaller numeral is placed between two larger numerals, then this smaller...