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# Module 2 Lesson 12

Module 2 Lesson 12. Multiply decimal fractions by multi-digit whole numbers through conversion to a whole number problem and reasoning about the placement of the decimal. Common Core Standards.

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## Module 2 Lesson 12

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1. Module 2 Lesson 12 • Multiply decimal fractions by multi-digit whole numbers through conversion to a whole number problem and reasoning about the placement of the decimal.

2. Common Core Standards 5.OA.2 Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation “add 8 and 7, then multiply by 2” as 2 × (8 + 7). Recognize that 3 × (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.5.NBT.5 Fluently multiply multi-digit whole numbers using the standard algorithm.

3. I can multiply decimal fractions by multi-digit whole numbers through conversion to a whole number problem and reasoning about the placement of the decimal. Learning Targets

4. Activate Knowledge 12 in = ___ ft.

5. Activate Knowledge 24 in = ___ ft.

6. Activate Knowledge 36 in = ___ ft.

7. Activate Knowledge 48 in = ___ ft.

8. Activate Knowledge 120 in = ___ ft.

9. Activate Knowledge 1 ft = ___ in.

10. Activate Knowledge 2 ft = ___ in.

11. Activate Knowledge 2.5 ft = ___ in.

12. Activate Knowledge 3 ft = ___ in.

13. Activate Knowledge 3.5 ft = ___ in.

14. Activate Knowledge 4 ft = ___ in.

15. Activate Knowledge 4.5 ft = ___ in.

16. Activate Knowledge 9 ft = ___ in.

17. Activate Knowledge 9.5 ft = ___ in.

18. Activate Knowledge 27 ft = ___ in.

19. Activate Knowledge 27.5 ft = ___ in.

20. Activate Knowledge Say the number as a decimal 8 tenths Zero point eight

21. Activate Knowledge Say the number as a decimal 35 tenths

22. Activate Knowledge Say the number as a decimal 45 tenths

23. Activate Knowledge Say the number as a decimal 85 tenths

24. Activate Knowledge Say the number as a decimal 83 tenths

25. Activate Knowledge Say the number as a decimal 63 tenths

26. Activate Knowledge Say the number as a decimal 47 tenths

27. Activate Knowledge Say the number as a decimal 8 hundredths

28. Activate Knowledge Say the number as a decimal 10 hundredths

29. Activate Knowledge Say the number as a decimal 20 hundredths

30. Activate Knowledge Say the number as a decimal 30 hundredths

31. Activate Knowledge Say the number as a decimal 90 hundredths

32. Activate Knowledge Say the number as a decimal 95 hundredths

33. Activate Knowledge Say the number as a decimal 99 hundredths

34. Activate Knowledge Say the number as a decimal 199 hundredths

35. Activate Knowledge Say the number as a decimal 299 hundredths

36. Activate Knowledge Say the number as a decimal 257 hundredths

37. Activate Knowledge Say the number as a decimal 463 hundredths

38. Activate Knowledge Thirty-two cyclists make a seven day trip. Each cyclist requires 8.33 kg of food for the entire trip. If each cyclist wants to eat an equal amount of food each day, how many kg of food will the group be carrying at the end of day 5?

39. Learn Estimate the product 2.31 x 22 Problem 1

40. Learn Predict whether our estimate is greater than or less than the actual product. 2.31 x 22 Problem 1

41. Learn Use an area model to find the product 2.31 x 22 Problem 1

42. Learn Solve using the algorithm 2.31 x 22 Problem 1

43. Learn Estimate the product 2.31 x 221 Problem 2

44. Learn Predict whether our estimate is greater than or less than the actual product. 2.31 x 221 Problem 2

45. Learn Use an area model to find the product 2.31 x 221 Problem 2

46. Learn Solve using the algorithm 2.31 x 221 Problem 2

47. Learn Estimate the product 2.31 x 201 Problem 3

48. Learn Predict whether our estimate is greater than or less than the actual product. 2.31 x 201 Problem 3

49. Learn Solve using the algorithm 2.31 x 201 Problem 3

50. Learn Estimate the product 4.95 x 11 Problem 4

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