(b) 3 + 5 = 0 1 2 3 4 5 6 7 8 9 (c) 2 + 1 + 4 = 0 1 2 3 4 5 6 7 8 9 (d) 3 + 0 + 6 = 0 1 2 3 4 5 6 7 8 9 SOME NCERT TEXTBOOK QUESTIONS 1 How many altogether? 2 cows and 1 cow is equal to cows 3 children and 2 children is equal to children 40