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Module 2 Lesson 2

Module 2 Lesson 2. Estimate multi-digit products by rounding factors to a basic fact and using place value patterns. Common Core Standards.

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Module 2 Lesson 2

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  1. Module 2 Lesson 2 • Estimate multi-digit products by rounding factors to a basic fact and using place value patterns.

  2. Common Core Standards • 5.NBT.1  Recognize that in a multi-digit number, a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents in the place to its left. • 5.NBT.2  Explain patterns in the number of zeros of the product when multiplying a number by powers of 10, and explain patterns in the placement of the decimal point when a decimal is multiplied or divided by a power of 10. Use whole-number exponents to denote power of 10.

  3. I can Estimate multi-digit products by rounding factors to a basic fact and using place value patterns. Learning Targets

  4. Sprint A

  5. Sprint B

  6. Activate Knowledge Write the multiplication sentence 31 × 10 =

  7. Activate Knowledge Write the multiplication sentence 31 × 10 = 310 × 2 =

  8. Activate Knowledge Write the multiplication sentence 31 × 10 = 310 × 2 = 310 × 20 =

  9. Activate Knowledge Write the multiplication sentence 23 × 10 =

  10. Activate Knowledge Write the multiplication sentence 23 × 10 = 230 × 4 =

  11. Activate Knowledge Write the multiplication sentence 23 × 10 = 230 × 4 = 230 × 40 =

  12. Activate Knowledge Write the multiplication sentence 32 × 10 =

  13. Activate Knowledge Write the multiplication sentence 32 × 10 = 320 × 3 =

  14. Activate Knowledge Write the multiplication sentence 32 × 10 = 320 × 3 = 320 × 30 =

  15. Activate Knowledge Jonas practices guitar 1 hour a day for 2 years. Bradley practices the guitar 2 hours a day more than Jonas. How many more minutes does Bradley practice the guitar than Jonas over the course of 2 years?

  16. Learn Estimate 23 x 18 Problem 1

  17. Learn Estimate 23 x 18 20 x 20 2 x 2 x 10 x 10 Problem 1

  18. Learn Estimate 456 × 42 Problem 2

  19. Learn Estimate 456 × 42 460 x 40 Problem 2

  20. Learn Estimate 456 × 42 500 x 40 Problem 2

  21. Learn Estimate 456 × 42 500 x 40 5 x 4 x 10 x 10 x 10 Problem 2

  22. Learn Estimate 4560 × 42 Problem 3

  23. Learn Estimate 4560 × 420 Problem 4

  24. Learn Estimate 1,320 x 88 Problem 5

  25. ✔ Check Understanding Estimate 1,320 × 88 ≈ 90,000 13,205 × 880 Problem 6

  26. ✔ Check Understanding Estimate 3,120 × 880 Problem 7

  27. Practice

  28. Review

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