Download GO Math Chapter 4

Chapter 4:
Multiply Decimals
Decimal
Expanded Form
Hundredths
A number with one or more digits to the right of the decimal point.
A way to write a number that shows the value of each digit.
One of one hundred equal parts
Multiplication
The process used to find the total number of items in a given
Ones
The value of a digit in the ones position on a place value chart
Pattern
Place Value
Product
Tenths
Thousandths
A repeating sequence that follows a rule that repeats
The value of a digit in a number based on the location of the digit
The result when you multiply two numbers
One of ten equal parts
One of one thousand equal parts
Lesson 4-1: Multiplication Patterns with Decimals
10
10
10
10
0
24.46 =
X
1
2
3
10
10
10
10
1 X 0.35 =
X
24.46 =
10 X 0.35 =
X
24.46 =
100 X 0.35 =
X
24.46 =
1,000 X 0.35 =
0
1 X 2,154 =
0.1X 2,154 =
0.01X 2,154 =
0.001 X 2,154 =
X
0.16 =
7.02 X 1 =
230 X 1 =
X
0.16 =
7.02 X 10 =
230 X 0.1 =
X
0.16 =
7.02 X 100 =
230 X 0.01 =
7.02 X 1,000 =
230 X 0.001 =
1
2
3
X
0.16 =
Test Prep Lesson 4-1
Use your clicker to answer the following question:
Lesson 4-2: Decimals and Whole Numbers
Find the product. Draw a quick picture
3 x 0.6 =
Find the product. Draw a quick picture
2 x 0.27 =
Find the product. Draw a quick picture
4 x 1.3 =
Find the product. Draw a quick picture
4 x 0.31 =
Test Prep Lesson 4-2
Use your clicker to answer the following question:
Lesson 4-3: Multiply with Decimals and Whole Numbers
Place the decimal point in the product
2.36
X
3
708
X
2.9
5
14.93
X
6
145
8958
Multiply:
8 x 0.35 =
5 x 2.5 =
8 x 1.35 =
21.72 x 4 =
Test Prep Lesson 4-3
Use your clicker to answer the following question:
Lesson 4-4: Multiplying Using Expanded Form
Multiplying place value patterns
13 x 6.8 =
Draw a model to find the product.
60
13 x 6.8 =
10
6
60
3
18
18
8
+
2.4
88.4
0.8
8
2.4
Multiply sing place value patterns
39 x 4.8 =
Draw a model to find the product.
120
39 x 4.8 =
30
4
120
9
36
+
36
24
7.2
187.2
0.8
24
7.2
Test Prep Lesson 4-4
Use your clicker to answer the following question:
Lesson 4-5: Multiplying Money
Test Prep Lesson 4-5
Use your clicker to answer the following question:
Lesson 4-6: Decimal Multiplication
Add slides to show one tenth x one tenth
0.3 X 0.7 =
Shade
second
horizontally
Shade
first
vertically
0.21
Count the squares that are
double shaded
0.9
X
Shade
Second
horizontally
1.5 = 1.35
Shade
first
vertically
Count the
squares that are
double shaded
Test Prep Lesson 4-6
Use your clicker to answer the following question:
Lesson 4-7: Multiply Decimals
352
X 0.4
35.2
X 0.4
3.52
X 0.4
241
X 12
241
X 1.2
24.1
X .12
Test Prep Lesson 4-7
Use your clicker to answer the following question:
Lesson 4-8: Zeros in the
Product
0.06
X 0.9
0.04
X 0.2
0.07
X 0.2
X
0.6
0.9
X
0.4
0.2
X
0.7
0.2
Test Prep Lesson 4-8
Use your clicker to answer the following question: