1. 1 Addition Grade 2

2. 2 Welcome  Hello!  How are you today.  Lets start a new Lesson !

3. 3 Recap  In the last chapter, we learned how to Regroup ones as tens to make addition simpler.  Always begin with adding ones.  You can regroup by making tens and ones if there is 10 or more ones.  Then we add tens to get the sum.

4. 4 Try this!!  Julia bought 6 dresses from a shop. Her friend bought 11 dresses from the same shop. How many dresses did they buy all together? Can you tell the correct answer? 1. 15 2. 12 3. 17 Well done!!

5. 5 Adding one digit to two digit numbers  Lets add 6 and 17. Write 6 as 6 ones and 17 as 1 tens and 7 ones.  Show 6 and 17 in tens and ones table in step 1. TensOnes TensOnesTensOnes Step 1Step 2Step 3 Add 6 ones and 7 ones.Regroup 10 ones as 1 ten.Add the tens.

6. 6 Adding two digit numbers (cont.)  So, 6 + 17 = 23 TensOnes 1 76 76 TensOnes 1 763763 TensOnes 12 12 763763 11 + + +

7. 7 Adding two digit numbers  Example Add 3 and 19 TensOnes 1 93 93 TensOnes 1 932932 TensOnes 1 2 932932 11 + ++

8. 8 Something to remember!!  When you add one digit to two digit numbers, always add ones first.  While adding ones if the ones are 10 or more, you can regroup.  Remember when you regroup, record in the tens column.

9. 9 Practice  Add one digit to two digit numbers. 38 4+

10. 10 Practice  Add one digit to two digit numbers. 14 6+

11. 11 Practice  Add one digit to two digit numbers. 47 3+

12. 12 Practice  Add one digit to two digit numbers. 32 9+

13. 13 Practice  Add one digit to two digit numbers. 27 9+

14. 14 Practice  Add one digit to two digit numbers. 45 6+

15. 15 Practice  Regroup. Write how many tens and ones are there in 65? tensOnes

16. 16 Practice  Rachael scored 3 points in a quiz. Her team mate scored 18 points in the same quiz. How many points did they scored in all?

17. 17 Practice  Lisa has 8 roses and 25 lilies for the flower arrangement. How many flowers she had in all?

18. 18 Practice  Find the missing number. 16 + __ = 21

19. 19 Break!!

20. 20 Assessment  What is the sum of 8 and 25?

21. 21 Assessment  When you regroup 34, how many tens would be in tens column?

22. 22 Assessment  Add the following one digit to two digit numbers. TensOnes 14444 +

23. 23 Assessment  Add the following one digit to two digit numbers. TensOnes 45757 +

24. 24 Assessment  Add the following one digit to two digit numbers. TensOnes 63939 +

25. 25 Assessment  Add the following one digit to two digit numbers. TensOnes 23636 +

26. 26 Assessment  Add the following one digit to two digit numbers. TensOnes 44747 +

27. 27 Assessment  Sheena bought 6 bananas from a corner shop. Lucy bought a dozen bananas from the same shop. How many bananas do they have in all?

28. 28 Assessment  Michael has 22 marbles and Peter has 9 marbles. How many marbles do they have in all?

29. 29 Assessment  Add the following. 13 + 8

30. 30 Assessment  Do you need regrouping in the following: 15 + 4

31. 31 Recap  When you add one digit to two digit numbers, always add ones first.  While adding ones if the ones are 10 or more, you can regroup.  Remember when you regroup, record in the tens column.  Then add to find the sum.

32. 32 Excellent work!!  Now practice your worksheet to get better understanding of adding one digit to two digit numbers.  All the best.