Multiplying TU by U

Next Next SlideSlide

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?

Next Next SlideSlide

What would the calculation look like?

38x6=What would the approximate answer be?

40x6=240

We know that 4x6=24 so……

Next Next SlideSlide

38 x 6 =

30

6

8

228

18048+

120100

228

180 48 8

Next Next SlideSlide

Now your turn

Next Next SlideSlide

34 x 6 =

30

What number goes here?

Next Next SlideSlide

34 x 6 =

30

What number goes here?

4Next Next SlideSlide

34 x 6 =

30

What number goes here?

4

6

Next Next SlideSlide

34 x 6 =

30

When you multiply 6 x 30 what number goes here?

4

6 180

Next Next SlideSlide

34 x 6 =

30

When you multiply 6 x 4 what number goes here?

4

6 180 24

Next Next SlideSlide

34 x 6 =

30

Now add 180 and 24 what number goes here?

4

6 180 24

180

Next Next SlideSlide

34 x 6 =

30

Now add 180 and 24 what number goes here?

4

6 180 24

18024+

Next Next SlideSlide

34 x 6 =

30

Now add up the units:

4 + 0 = ?

4

6 180 24

18024+ 4

Next Next SlideSlide

34 x 6 =

30

Now add up the tens:

20 + 80 = ?

4

6 180 24

18024+ 4

100

Next Next SlideSlide

34 x 6 =

30

Now add up the hundreds: 100 + 0 = ?

4

6 180 24

18024+ 4

100100

Next Next SlideSlide

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 =

Next Next SlideSlide

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