Download - Multiplying TU by U
Multiplying TU by U
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How can we use a multiplication grid to help us solve this word
problem?
Sam had 6 packets of balloons for his party.
Each packet contained 38 balloons.
How many balloons would Sam have to blow up altogether?
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What would the calculation look like?
38x6=What would the approximate answer be?
40x6=240
We know that 4x6=24 so……
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38 x 6 =
30
6
8
228
18048+
120100
228
180 48 8
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Now your turn
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34 x 6 =
30
What number goes here?
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34 x 6 =
30
What number goes here?
4Next Next SlideSlide
34 x 6 =
30
What number goes here?
4
6
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34 x 6 =
30
When you multiply 6 x 30 what number goes here?
4
6 180
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34 x 6 =
30
When you multiply 6 x 4 what number goes here?
4
6 180 24
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34 x 6 =
30
Now add 180 and 24 what number goes here?
4
6 180 24
180
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34 x 6 =
30
Now add 180 and 24 what number goes here?
4
6 180 24
18024+
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34 x 6 =
30
Now add up the units:
4 + 0 = ?
4
6 180 24
18024+ 4
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34 x 6 =
30
Now add up the tens:
20 + 80 = ?
4
6 180 24
18024+ 4
100
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34 x 6 =
30
Now add up the hundreds: 100 + 0 = ?
4
6 180 24
18024+ 4
100100
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34 x 6 =
30
Now add everything up.
4
6 180 24
18024+ 4
100100204
204Next Next SlideSlide
Try this one on your own now:
36 x 4 =
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I really understand this and I got most of them correct.
I am beginning to understand this and I got many of them correct.
I need more practice to help me understand this and I made lots of mistakes.A
B
C
LO: To use multiplicationLast Last SlideSlide