Rounding Numbers www.eteachertemplates.com.

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Presentation transcript:

Rounding Numbers www.eteachertemplates.com

Rounding Numbers Count by 10 to 100. Forward and Backwards Which multiple of 10 is 27 closest to? 30 20 www.eteachertemplates.com

Rounding Numbers Which multiple of 10 is 22 closest to? 20 30 www.eteachertemplates.com

Rounding Numbers 25 is exactly halfway between 20 and 30. Always round up a multiple of 5 to the next multiple of 10. 20 25 30 www.eteachertemplates.com

Rounding Numbers What is 25 rounded to the nearest 10? 25 20 30 www.eteachertemplates.com

Rounding Numbers Round Down Round Up 25 30 20 21 22 23 24 26 27 28 29 www.eteachertemplates.com

Round To Nearest Tens www.eteachertemplates.com Shade in a range of numbers and ask the students to round each to the nearest multiple of 10. www.eteachertemplates.com

Round To Nearest Tens www.eteachertemplates.com Shade in a range of numbers and ask the students to round each to the nearest multiple of 10. www.eteachertemplates.com

Talk It Over! Work with your partner Explain why the number 67 becomes 70 when rounded to the nearest 10. A large book weighs 60 pounds when rounded to the nearest 10. Write 2 possible weights for the book. www.eteachertemplates.com

Let’s Practice! Round to Nearest 10. 66 = _____ 6. 23 = ____ 66 = _____ 6. 23 = ____ 85 = _____ 7. 33 = ____ 72 = _____ 8. 9 = ____ 99 = _____ 9. 15 = ____ 110 = ____ 10. 24 = ____ Shade in a range of numbers and ask the students to round each to the nearest multiple of 10. www.eteachertemplates.com