Download Lesson 3.5, day 2: Multiplying by 2-digits

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Transcript 
Go Math!
Chapter 3
Lesson 3.5, day 2
multiply 2-digit by 2-digit using
regrouping
2016-17
How can you
find the
product of
two 2-digit
numbers?
By 1914, Henry Ford had
streamlined his assembly
line to make a Model T Ford
car in 93 minutes. How
many minutes did it take to
make 25 Model Ts?
25 x 93
Estimate:
90 x 30 = 2,700
93
x 25
1
93
x 25
465
x
1
93
x 25
465
,
+ 1860
2,325
1
1
Estimate:
40 x 60 = 2,400
38
x 62
1
38
x 62
76
4
x
1
38
x 62
76
+2280
,
2,356
1
Let’s
Practice!
68
x 53
90
x 27
57
x 98
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