Transcript X 8

Warm Up
1. There were 4 haunted houses
with 87 ghosts in each house.
How many total ghost were
there?
2. There were a total of 186 black
cats that lived on Witch Lane. If
an equal number of cats lived in
each of the 6 houses, how many
cats lived in each house?
3. Which table shows 4 more than 5 times
the number in Set A?
A. Set A
Set B
B.
Set A
Set B
1
25
1
9
3
35
3
19
6
50
6
34
4. Dr. Peter Venkman wrote down the
number of ghosts at the cemetery. Then he
multiplied the number by 6 and
subtracted 10 from the product. The
result was 62. What was the number of
ghosts Dr. Peter Venkman saw at the
cemetery?
How can we solve a multiplication problem
with a 3 digit number and a 1 digit number?
Review: Solve as a class
What is the equation you would use to solve this problem?
347 x 8
How could we break apart 347?
300
40
7
What are we going to multiple each part by?
Add Partial Products:
X8
300
X 8
2400
40
X 8
320
7
X 8
56
2400
320
+ 56
2756
How can we solve a multiplication problem
with a 3 digit number and a 1 digit number?
Strategy Two Regrouping:
347
X 8
277 6
3 5
7 X 8?
What is 40 X 8?
320 Plus 50?
What is 300 X 8?
2400Plus 300?
What is
How can we solve a multiplication problem
with a 3 digit number and a 1 digit number?
Practice with your group to solve the following problems. Write
a reasonable statement about each product before you begin.
How can we solve a multiplication problem
with a 3 digit number and a 1 digit number?
Practice SOLO (independently) to solve the following problem.
Write a reasonable statement about the product before you
begin.
How can we solve a multiplication problem
with a 3 digit number and a 1 digit number?
Independent Work: Superteacherworksheet