Page 157 - Demo

156 Arrow-Puffin-1_Semester-1 MathsThere are many ways of doing addition.Add 25 and 3. Keep the first number i,e. 25 in mind.Keep 3 fingers open in hand.After 25, count the three fingers.After 25 26 27 28We reach 28 when we count forward by 3.So 25 + 3 = 2825Addition By Counting ForwardWe can add numbers by counting forward.> >ADDITION OF TWO - DIGIT NUMBERSYou have already learnt how to add single-digit numbers.Let's now learn how to add two-digit numbers using different methods. Just count forward and add the following. (Keep the bigger number in the mind and show the smaller number in fingers and count).T O4 3+ 3T O3+ 3 6T O6+ 5 1T O9 1+ 7T O5+ 2 3T O8 2+ 3T O3 5+ 3T O1 5+ 3T O5 4+ 3T O4+ 2 1Let's Understand Conceptual Understanding Let's Practise 7.1 Application