1. ENY Module 2, Lesson 12 Objective:
I can reason about the product of a whole number and a decimal with hundredths using place value understanding and estimation.

2. Fluency Practice 12 in = 1 ft 1 ft = 12 in 4 ft = 48 in 24 in = 2 ft
Solve:
12 in = 1 ft
1 ft = 12 in
4 ft = 48 in
24 in = 2 ft
2 ft = 24 in
4.5 ft = 54 in
36 in = 3 ft
2.5 ft = 30 in
9 ft = in
3 ft = 36 in
48 in = 4 ft
9.5 ft = in
120 in = 10 ft
3.5 ft = 42 in
27 ft = in

3. Fluency Practice 8 hundredths 8 tenths 9 hundredths 9 tenths
Write each in their decimal form:
8 tenths
8 hundredths
9 hundredths
9 tenths
10 tenths
10 hundredths
11 tenths
20 hundredths
19 tenths
90 hundredths
20 tenths
95 hundredths
35 tenths
199 hundredths
83 tenths
257 hundredths
47 tenths
463 hundredths

4. Application Problem

5. 2.31 x 201 Concept Development: Problem #1 STEP 1:
Round each factor to estimate the product.
STEP 2:
Multiply your rounded factors to estimate the product.
STEP 3:
Rename the decimal using tenths (multiply by 10).
STEP 4:
Multiply.
STEP 5:
Find the partial products and the final product.
STEP 6:
Convert your final product to standard form (divide by 10).

6. 495 x 1.11 Concept Development: Problem #2 STEP 1:
Round each factor to estimate the product.
STEP 2:
Multiply your rounded factors to estimate the product.
STEP 3:
Rename the decimal using tenths (multiply by 10).
STEP 4:
Multiply.
STEP 5:
Find the partial products and the final product.
STEP 6:
Convert your final product to standard form (divide by 10).

7. 0.98 x 495 Concept Development: Problem #3 STEP 1:
Round each factor to estimate the product.
STEP 2:
Multiply your rounded factors to estimate the product.
STEP 3:
Rename the decimal using tenths (multiply by 10).
STEP 4:
Multiply.
STEP 5:
Find the partial products and the final product.
STEP 6:
Convert your final product to standard form (divide by 10).

8. 0.25 x 51 Concept Development: Problem #4 STEP 1:
Round each factor to estimate the product.
STEP 2:
Multiply your rounded factors to estimate the product.
STEP 3:
Rename the decimal using tenths (multiply by 10).
STEP 4:
Multiply.
STEP 5:
Find the partial products and the final product.
STEP 6:
Convert your final product to standard form (divide by 10).

9. 0.56 x 84 Concept Development: Problem #5 STEP 1:
Round each factor to estimate the product.
STEP 2:
Multiply your rounded factors to estimate the product.
STEP 3:
Rename the decimal using tenths (multiply by 10).
STEP 4:
Multiply.
STEP 5:
Find the partial products and the final product.
STEP 6:
Convert your final product to standard form (divide by 10).

10. Problem Set
Now it's your turn. Persevere for 10 minutes, on your own, then we'll work together.

11. Exit Ticket