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Module 2 Lesson 10 Multiply decimal fractions with tenths by multi-digit whole numbers using place value understanding to record partial products.

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Presentation on theme: "Module 2 Lesson 10 Multiply decimal fractions with tenths by multi-digit whole numbers using place value understanding to record partial products."— Presentation transcript:

1 Module 2 Lesson 10 Multiply decimal fractions with tenths by multi-digit whole numbers using place value understanding to record partial products.

2 5.NBT.7 Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Common Core Standards

3 Learning Targets I can multiply decimal fractions with tenths by multi-digit whole numbers using place value understanding to record partial products.

4 Activate Knowledge 3 × 2 is?

5 Activate Knowledge 3 × 2 x 10 ÷ 10 is?

6 Activate Knowledge 5 × 0.3 is?

7 Activate Knowledge 5 × 0.3 x 10 ÷ 10 is?

8 Activate Knowledge 3 × 2.5 is?

9 Activate Knowledge 3 × 2.5 x 10 ÷ 10 is?

10 Activate Knowledge 2 × 3.4 is?

11 Activate Knowledge 2 × 3.4 x 10 ÷ 10 is?

12 Activate Knowledge Why are the products the same when we multiply by 10 and then divide by 10?

13 Activate Knowledge Write the word name 7.463

14 Activate Knowledge Represent this number in a two-part number bond with ones as one part and thousandths as the other part 7.463

15 Activate Knowledge Represent it again with tenths and thousandths. 7.463

16 Activate Knowledge Represent it again with hundredths and thousandths. 7.463

17 Activate Knowledge Write the word name 8.972

18 Activate Knowledge Represent this number in a two-part number bond with ones as one part and thousandths as the other part 8.972

19 Activate Knowledge Represent it again with tenths and thousandths. 8.972

20 Activate Knowledge Represent it again with hundredths and thousandths. 8.972

21 Activate Knowledge Write the word name 6.849

22 Activate Knowledge Represent this number in a two-part number bond with ones as one part and thousandths as the other part 6.849

23 Activate Knowledge Represent it again with tenths and thousandths. 6.849

24 Activate Knowledge Represent it again with hundredths and thousandths. 6.849

25 Activate Knowledge The fifth-grade craft club is making aprons to sell. Each apron takes 1.25 yards of fabric that costs $3 per yard and 4.5 yards of trim that costs $2 per yard. What does it cost the club to make one apron? If the club wants to make $1.75 profit on each apron, how much should they charge per apron?

26 Learn Problem 1 43 × 2.4 Round the factors to estimate the product.

27 Learn Problem 1 43 × 2.4 Predict whether our estimate is greater than or less than the actual product.

28 Learn Problem 1 43 × 2.4 There are 43 units of 2.4. How many tenths is 2.4?

29 Learn Problem 1 43 × 24 tenths Solve using the standard algorithm

30 Learn Problem 1 x 10 ÷ 10 Tenths

31 Learn Problem 1 3.5 × 42 Round the factors to estimate the product.

32 Learn Problem 1 3.5 × 42 Predict whether our estimate is greater than or less than the actual product.

33 Learn Problem 1 3.5 × 42 There are 43 units of 2.4. How many tenths is 2.4?

34 Learn Problem 1 35 tenths x 42 Solve using the standard algorithm

35 Learn Problem 1 15.6 × 73 Round the factors to estimate the product.

36 Learn Problem 1 15.6 × 73 Predict whether our estimate is greater than or less than the actual product.

37 Learn Problem 1 15.6 × 73 There are 43 units of 2.4. How many tenths is 2.4?

38 Learn Problem 1 156 tenths x 73 Solve using the standard algorithm

39 Practice

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48 Review


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