Chapter 3
Addition and Subtraction
ā°ాā°ం 1: Addition (ā°ā°Ž)
1. ā°ļంā°ā°°్ ā°ā° ā°ā°ā°°ుā°˛ో ā°Ēā°¤్ā°¤ి ā°¤ోā° ā°¸ాā°ింā°ాā°°ు. ā°ిā°¯ాā°°ి ā°Žā°°ిā°¯ు ā°Žొā°్ā°ā°˛ు ā°¨ాā°ā°ాā°¨ిā°ి ₹4507 ā°ā°°్ā°ు ā°
ā°¯్ā°¯ింā°Ļి.
ā°Ē్ā°°ā°ļ్ā°¨: ā°ిā°¯ాā°°ి ā°Žā°°ిā°¯ు ā°Žొā°్ā°ā°˛ు ā°¨ాā°ā°ాā°¨ిā°ి ā°ā°°్ā°ు ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: ₹4507
2. ā°ĢⰏⰞ్ ā°ోā°¤ ā°Žā°°ిā°¯ు ā°ā°¨్ā°Ŧā°°్ ā°ā°°్ā°Ēాā°ు ā°ోā°¸ం ā°ā°°్ā°ు ₹4675.
ā°Ē్ā°°ā°ļ్ā°¨: ā°ĢⰏⰞ్ ā°ోā°¤ ā°Žā°°ిā°¯ు ā°ā°¨్ā°Ŧā°°్ ā°ā°°్ā°Ēాā°ు ā°ోā°¸ం ā°ā°°్ā°ు ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: ₹4675
3. ā°ిā°¯ాā°°ి ⰤⰝాā°°ీ ā°ā°°్ā°ు ₹4507 ā°Žā°°ిā°¯ు ā°ā°Ą్ā°Ąి ā°¤ొā°˛ā°ింā°Ēు ₹1235.
ā°Ē్ā°°ā°ļ్ā°¨: ā°ā°°ు ā°ā°°్ā°ుā°˛ ā°Žొā°¤్ā°¤ం ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: ₹4507 + ₹1235 = ₹5742
4. ā°ā° ā°ā°ā°°ుā°˛ో ā°Žొā°¤్ā°¤ం ā°ā°°్ā°ుā°˛ు:
ā°¸ā°Žాā°§ాā°¨ం: ₹2545 + ₹4507 + ₹1235 + ₹4700 + ₹4125 + ₹4675 = ₹21,787
5. ā°°ెంā°Ąు ā°ā°ā°°ుā°˛ ā°Žొā°¤్ā°¤ం ā°ā°°్ā°ు:
ā°¸ā°Žాā°§ాā°¨ం: ₹21,787 × 2 = ₹43,574
6. 52435 + 42567 ā°¨ు ā°ā°Ž ā°ేā°¯ంā°Ąి.
ā°¸ā°Žాā°§ాā°¨ం: 95002
7. 326523 + 437582 ā°¨ు ā°ā°Ž ā°ేā°¯ంā°Ąి.
ā°¸ā°Žాā°§ాā°¨ం: 764,105
8. 826532 + 153264 ā°¨ు ā°ā°Ž ā°ేā°¯ంā°Ąి.
ā°¸ā°Žాā°§ాā°¨ం: 979,796
9. 286952 + 394256 ā°¨ు ā°ā°Ž ā°ేā°¯ంā°Ąి.
ā°¸ā°Žాā°§ాā°¨ం: 681,208
10. 763482 + 367842 + 567324 ā°¨ు ā°ā°Ž ā°ేā°¯ంā°Ąి.
ā°¸ā°Žాā°§ాā°¨ం: 1,698,648
ā°ాā°ం 2: Subtraction (ā°¤ā°్ā°ింā°Ēు)
11. ā°Žోā°šā°¨్ ā°ā°¨ā°ĩā°°ిā°˛ో ₹53,574 ā°¸ంā°Ēాā°Ļింā°ి, ₹31,787 ā°ā°°్ā°ు ā°ేā°ļాā°°ు. ā°¨ిā°ā°° ā°˛ాā°ం ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: ₹53,574 - ₹31,787 = ₹21,787
12. 49543 ā°¨ుంā°Ąి 26874 ā°¤ā°్ā°ింā°ంā°Ąి.
ā°¸ā°Žాā°§ాā°¨ం: 49543 - 26874 = 22,669
13. 32564 ā°¨ుంā°Ąి 2356 ā°¤ā°్ā°ింā°ంā°Ąి.
ā°¸ā°Žాā°§ాā°¨ం: 32564 - 2356 = 30,208
14. 432010 ā°¨ు 705645 ā°¨ుంā°Ąి ā°¤ā°్ā°ింā°ంā°Ąి.
ā°¸ā°Žాā°§ాā°¨ం: 705,645 - 432,010 = 273,635
15. 763842 ā°¨ు 647836 ā°¨ుంā°Ąి ā°¤ā°్ā°ింā°ంā°Ąి.
ā°¸ā°Žాā°§ాā°¨ం: 647,836 - 763,842 = -116,006 (negative)
16. 6070801 ā°¨ుంā°Ąి 900000 ā°¤ā°్ā°ింā°ంā°Ąి.
ā°¸ā°Žాā°§ాā°¨ం: 6,070,801 - 900,000 = 5,170,801
17. 201781 ā°¨ు 400000 ā°¨ుంā°Ąి ā°¤ā°్ā°ింā°ంā°Ąి.
ā°¸ā°Žాā°§ాā°¨ం: 400,000 - 201,781 = 198,219
18. 8437 ā°¨ు 783409 ā°¨ుంā°Ąి ā°¤ā°్ā°ింā°ంā°Ąి.
ā°¸ā°Žాā°§ాā°¨ం: 783,409 - 8,437 = 774,972
ā°ాā°ం 3: Estimation (ā° ంā°ā°¨ా)
19. ā°Ŧాā°Ŧా ā°ాā°¤ాā°˛ో ₹27,844 ā°ంā°Ļి. ₹2,257 ā°ā°°్ā°ు ā°ేā°ļాā°°ు. ā°¸ుā°Žాā°°ు ā°ంā°¤ ā°Žిā°ిā°˛ింā°Ļి?
ā°¸ā°Žాā°§ాā°¨ం: ₹27,844 ≈ ₹28,000, ₹2,257 ≈ ₹2,000 → ā°Žిā°ిā°˛ిā°¨ā°Ļి ≈ ₹26,000
20. ā°°ā°ూā°°్ 158 + 143 ā°ā°°్ā°ు ā°ేā°ļాā°°ు. ā°
ంā°ā°¨ా ā°ā°°్ā°ు ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: ₹158 + ₹143 ≈ ₹300 → ā°¸ుā°Žాā°°ు ₹300
21. ā°°ాā°ు ₹37,890 ā°˛ో ā°Žొā°Ŧైā°˛్ ā°ొā°¨ుā°ోā°˛ు ā°ేā°ļాā°°ు ā°Žā°°ిā°¯ు ₹3,295 ā°˛ో ā°ుā°°్ā°ీ ā°ొā°¨్ā°¨ాā°°ు. ā°Žొā°¤్ā°¤ం ā°ā°°్ā°ు ā°¸ుā°Žాā°°ు ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: ₹37,890 ≈ ₹38,000 + ₹3,295 ≈ ₹3,000 → ₹41,000
22. ā°šā°¸ీā°¨ా ₹25,345 ā°˛ో ā°¸ాā°°ి ā°ొā°¨ుā°ోā°˛ు, ₹2,050 ā°˛ో ā°ā°Žీā°ˇ్. ā°Žొā°¤్ā°¤ం ā°¸ుā°Žాā°°ు?
ā°¸ā°Žాā°§ాā°¨ం: ₹25,345 ≈ ₹25,000 + ₹2,050 ≈ ₹2,000 → ₹27,000
23. ā°ĩీā°Ąిā°¯ో ā°ేā°Ž్ ā°˛ో 6,776 vs 2,373 ā°Ēాā°¯ింā°్ā°˛ు. ā°¤ేā°Ąా ā°¸ుā°Žాā°°ు ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: 6,776 - 2,373 ≈ 4,400 → ā°¸ుā°Žాā°°ు 4,000–5,000
24. 257 ā°Ēేā°ీā°˛ ā°Ēుā°¸్ā°¤ā°ం ā°¨ుంā°Ąి 163 ā°Ēేā°ీā°˛ు ā°ā°Ļిā°ĩాā°°ు. ā°¸ుā°Žాā°°ు ā°ā°¨్ā°¨ి ā°Žిā°ిā°˛ాā°¯ి?
ā°¸ā°Žాā°§ాā°¨ం: 257 - 163 ≈ 257 - 160 ≈ 97 → ā°¸ుā°Žాā°°ు 100
ā°ాā°ం 4: Profit & Loss (ā°˛ాā°ం ā°Žā°°ిā°¯ు ⰍⰎ్ā°ā°Žు)
25. ā°¸ూā°ి ā°¸ాā°°ి 1200 ā°˛ో ā°ొā°¨ుā°ోā°˛ు, 1400 ā°˛ో ā°
ā°Ž్ā°Žాā°°ు. ā°˛ాā°ం ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: ₹1400 - ₹1200 = ₹200 → ā°˛ాā°ం
26. ā°¸ూā°ి ā°¸ాā°°ి 1200 ā°˛ో ā°ొā°¨ుā°ోā°˛ు, 800 ā°˛ో ā°
ā°Ž్ā°Žాā°°ు. ⰍⰎ్ā°ం ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: ₹1200 - ₹800 = ₹400 → ⰍⰎ్ā°ం
27. ā°¸ైā°ిā°˛్ 1,500 ā°˛ో ā°ొā°¨ుā°ోā°˛ు, 1,350 ā°˛ో ā°
ā°Ž్ā°Žాā°°ు. ⰍⰎ్ā°ం ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: ₹1500 - ₹1350 = ₹150 → ⰍⰎ్ā°ం
28. ā°¸োāύা 28,000 ā°˛ో ā°ొā°¨ుā°ోā°˛ు, 40,000 ā°
ā°Ž్ā°Žాā°°ు. ā°˛ాā°ం ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: ₹40,000 - ₹28,000 = ₹12,000 → ā°˛ాā°ం
29. ā°°ైā°Ž్ ā°Ģ్ā°˛ాā°¸్ā°్ 450 ā°ొā°¨ుā°ోā°˛ు, 250 ā°˛ాā°ం ā°ాā°ĩాā°˛ంā°ే ā°§ā°° ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: ₹450 + ₹250 = ₹700 → ā° ā°Ž్ā°Žā° ā°§ā°°
30. ā°Žోā°ాā°°్ ā°¸ైā°ిā°˛్ 42,500 ā°˛ో ā°ొā°¨ుā°ోā°˛ు, 1,800 ⰍⰎ్ā°ంā°¤ో ā°
ā°Ž్ā°Žిā°¤ే ā°§ā°°?
ā°¸ā°Žాā°§ాā°¨ం: ₹42,500 - ₹1,800 = ₹40,700 → ā° ā°Ž్ā°Žā° ā°§ā°°
31. ā°Ģ్ā°¯ాā°¨్ 2,800 ā°ొā°¨ుā°ోā°˛ు, 250 ā°˛ాā°ంā°¤ో ā°
ā°Ž్ā°Žిā°¤ే ā°§ā°°?
ā°¸ā°Žాā°§ాā°¨ం: ₹2,800 + ₹250 = ₹3,050 → ā° ā°Ž్ā°Žā° ā°§ā°°
32. ā°ā° ā°šోā°ā°˛్ ā°˛ో ā°ā°¨ā°ĩā°°ిā°˛ో ā°ā°Ļాā°¯ం 337,645, ā°ాā°°్ā°¯ 25,367. ā°ā°°్ā°ు 38,600. ā°Žొā°¤్ā°¤ం ā°¸ేā°ĩింā°్ā°¸్?
ā°¸ā°Žాā°§ాā°¨ం: 337,645 + 25,367 = 363,012 - 38,600 = 324,412
33. ā°్ā°˛ాā°¸్ ā°ˇాā°Ēుā°˛ో ā°ā° ā°ā°¸్ā°ā°Žā°°్ 900 ā°ā°ĩā°ŗీā°˛ు ā°ొā°¨ుā°ోā°˛ు, 750 ā°ā°ĩā°ŗీā°˛ు ⰍⰎ్ā°ం. ā°
ā°Ž్ā°Žā°ం ā°§ā°° ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: 900 - 750 = 150 → ā° ā°Ž్ā°Žā°ం ā°§ā°°
34. ā°ā° ā°ā°¸్ā°ā°Žā°°్ 750 ā°˛ో ā°ొā°¨ుā°ోā°˛ు, 900 ā°˛ో ā°
ā°Ž్ā°Žాā°Ąు. ā°˛ాā°ం ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: 900 - 750 = ₹150 → ā°˛ాā°ం
35. ā°Ŧాā°Ŧా ā°ాā°¤ాā°˛ో 27,844, ā°ā°°్ā°ు 2,257. ā°Žిā°ిā°˛ిā°¨ ā°Žొā°¤్ā°¤ాā°¨్ā°¨ి ā°
ంā°ā°¨ా ā°ĩేā°¯ంā°Ąి.
ā°¸ā°Žాā°§ాā°¨ం: ₹26,000
36. ā°°ā°ూā°°్ 158 + 143 ā°ā°°్ā°ు. ā°¸ుā°Žాā°°ు ā°ā°°్ā°ు ā°ంā°¤?
ā°¸ā°Žాā°§ాā°¨ం: ₹300
37. ā°°ాā°ు 37,890 + 3,295 ≈ ā°¸ుā°Žాā°°ు ā°Žొā°¤్ā°¤ం ā°ā°°్ā°ు?
ā°¸ā°Žాā°§ాā°¨ం: ₹41,000
38. ā°šā°¸ీā°¨ా 25,345 + 2,050 ≈ ā°Žొā°¤్ā°¤ం?
ā°¸ā°Žాā°§ాā°¨ం: ₹27,000
39. ā°ĩీā°Ąిā°¯ో ā°ేā°Ž్ ā°Ēాā°¯ింā°్ā°˛ ā°¤ేā°Ąా: 6,776 - 2,373 ≈ ?
ā°¸ā°Žాā°§ాā°¨ం: ≈ 4,400 → ā°¸ుā°Žాā°°ు 4,000–5,000
Answer by Mrinmoee