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…..to our THIRD GRADE MATH CLASS! This PowerPoint was developed by Jessica Kresky and her Third Grade Team.

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Presentation on theme: "…..to our THIRD GRADE MATH CLASS! This PowerPoint was developed by Jessica Kresky and her Third Grade Team."— Presentation transcript:

1 …..to our THIRD GRADE MATH CLASS! This PowerPoint was developed by Jessica Kresky and her Third Grade Team

2 …..as we review some of the things that we’ve learned.

3 Hoot if you’ve heard of number bonds. Not number bons… Not number bombs… Not nummer bonds… But number bonds.

4 Number bonds show a relationship of numbers.

5 GREAT JOB! Let’s begin.

6 Mental Addition: Strategy One: Make a number bond. Use expanded form. Add the tens and then add the ones. Find STUDENTS, TEACH IT!

7 Mental Addition: Strategy One: Make a number bond. Use expanded form. Add the tens and then add the ones. Find ADULTS, TRY IT!

8 GREAT JOB! Let’s keep going!

9 Mental Addition: Strategy Two: Make a number bond. Round up. Add the tens, then subtract the extra ones. Find STUDENTS, TEACH IT!

10 Mental Addition: Strategy Two: Make a number bond. Round up. Add the tens, then subtract the extra ones. Find ADULTS, TRY IT!

11 GREAT JOB! Let’s keep going!

12 Mental Subtraction: Strategy One: Make a number bond using expanded form. Subtract the tens, then subtract the extra ones. Find STUDENTS, TEACH IT!

13 Mental Subtraction: Strategy One: Make a number bond using expanded form. Subtract the tens, then subtract the extra ones. Find ADULTS, TRY IT!

14 GREAT JOB! Let’s keep going!

15 Mental Subtraction: Strategy Two: Make a number bond by rounding up. Subtract the tens, then add the extra ones. Find STUDENTS, TEACH IT!

16 Mental Subtraction: Strategy Two: Make a number bond by rounding up. Subtract the tens, then add the extra ones. Find ADULTS, TRY IT!

17 Ready? Aim for 100.

18 More Mental Addition: Make a number bond by rounding up to 100. Add 100, then subtract the extra ones. Find STUDENTS, TEACH IT!

19 More Mental Addition: Make a number bond by rounding up to 100. Add 100, then subtract the extra ones. Find ADULTS, TRY IT!

20 GREAT JOB! Let’s keep going!

21 Ready? This is going to be so COOL!

22 More Mental Addition: Make number bonds by rounding to 100. Add the hundreds. Then, subtract the extra ones. Find STUDENTS, TEACH IT!

23 More Mental Addition: Make a number bond by rounding up to 100. Add 100, then subtract the extra ones. Find ADULTS, TRY IT!

24 GREAT JOB! Let’s stop!


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