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.
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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