Unit 3 Multiplication And Division Worksheet Page 17
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40➤ Use facts with 10
When 9 is a factor,
to multiply by 9.
I think about multiplying
To find 9
4, think:
by 10!
10
4 less 1
4
10
4
40
Subtract one group of 4.
40
4
36
9
4
36
➤ Use a half then double,
When I multiply by an
to multiply by an even factor.
even number, I think about
Here is another way to find 6
7:
how I can use doubles.
Choose the
even factor, 6.
Half of 6 is 3.
3
7
21
Think of 3
7,
then double.
21
21
42
3
7
21
So, 6
7
42
Multiply. What strategies did you use?
1.
3
6
6
3
7
5
5
7
a)
b)
c)
d)
3
3
6
6
7
7
7
6
e)
f)
g)
h)
Multiply. What strategies did you use?
2.
9
2
9
4
9
8
9
5
a)
b)
c)
d)
9
3
9
6
9
9
9
7
e)
f)
g)
h)
Name two facts to help you find each product.
3.
7
7
3
8
6
6
8
6
a)
b)
c)
d)
Alexis is having a birthday party in 4 weeks.
4.
How many days does she have to wait?
96
Unit 3 Lesson 4
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