Adding without Regrouping
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This document discusses adding numbers without regrouping. It explains that adding numbers means combining two sets to form a new set. It provides examples of adding two-digit and three-digit numbers step-by-step without regrouping. The steps are to add the ones, tens, and hundreds places separately. Practice problems are included for the reader to try adding numbers without regrouping.
Adding without Regrouping
- 4. Adding numbers is putting together two sets of things or people to form a new set.
- 5. girls in a class boys in a class and = a class of boys and girls
- 6. girls in a class boys in a class and = a class of boys and girls The set of boys and the set of girls form a new set that is composed of all pupils in the class.
- 7. We use the plus sign (+) to put together two or more numbers.
- 11. Steps in adding two-digit numbers without regrouping: 1.Add the ones. 2.Add the tens.
- 12. Example: 34 + 23 = _____ 34 +23
- 13. 34 +23
- 14. 34 +23 7
- 15. 34 +23 57
- 19. Try This!!!
- 20. 12 15 +11
- 21. 12 15 +11 38
- 22. 56 +43
- 23. 56 +43 99
- 25. 234 +125
- 26. Steps in adding three-digit numbers without regrouping: 1.Add the ones. 2.Add the tens. 3.Add the hundreds.
- 27. 234 +125
- 28. 234 +125 9
- 29. 234 +125 59
- 30. 234 +125 359
- 31. Try This!!!
- 32. 236 +542
- 33. 236 +542 778
- 34. 345 +444
- 35. 345 +444 789
- 36. Mathematics 2