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Multiplying 2 Digit Numbers by 1 digit numbers. Pages 17-19 MATH U2 L2

U2 L2 math - multiplying two digit numbers by one number

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Page 1: U2 L2   math - multiplying two digit numbers by one number

Multiplying 2 Digit Numbers by 1 digit

numbers.

Pages 17-19

MATH U2 L2

Page 2: U2 L2   math - multiplying two digit numbers by one number

Let’s review:

I’ll give you a short multiplication

quiz.

Write the answers on your

paper.

Page 3: U2 L2   math - multiplying two digit numbers by one number

7 x 6 =

Page 4: U2 L2   math - multiplying two digit numbers by one number

9 x 8 =

Page 5: U2 L2   math - multiplying two digit numbers by one number

3 x 7 =

Page 6: U2 L2   math - multiplying two digit numbers by one number

5 x 10=

Page 7: U2 L2   math - multiplying two digit numbers by one number

4 x 9=

Page 8: U2 L2   math - multiplying two digit numbers by one number

5 x 8=

Page 9: U2 L2   math - multiplying two digit numbers by one number

3 x 8=

Page 10: U2 L2   math - multiplying two digit numbers by one number

7 x 9=

Page 11: U2 L2   math - multiplying two digit numbers by one number

6 x 8=

Page 12: U2 L2   math - multiplying two digit numbers by one number

2 x 9=

Page 13: U2 L2   math - multiplying two digit numbers by one number
Page 14: U2 L2   math - multiplying two digit numbers by one number

Check:

7 x 6 = 42

Page 15: U2 L2   math - multiplying two digit numbers by one number

9 x 8 = 72

Check:

Page 16: U2 L2   math - multiplying two digit numbers by one number

3 x 7 = 21

Check:

Page 17: U2 L2   math - multiplying two digit numbers by one number

5 x 10=50

Check:

Page 18: U2 L2   math - multiplying two digit numbers by one number

4 x 9= 36

Check:

Page 19: U2 L2   math - multiplying two digit numbers by one number

5 x 8= 40

Check:

Page 20: U2 L2   math - multiplying two digit numbers by one number

3 x 8= 24

Check:

Page 21: U2 L2   math - multiplying two digit numbers by one number

7 x 9= 63

Check:

Page 22: U2 L2   math - multiplying two digit numbers by one number

6 x 8= 48

Check:

Page 23: U2 L2   math - multiplying two digit numbers by one number

2 x 9= 18

Check:

Page 24: U2 L2   math - multiplying two digit numbers by one number

Let’s Try something a little

harder…….

37 x 6 =222

Page 25: U2 L2   math - multiplying two digit numbers by one number

How did you find your answer?

Page 26: U2 L2   math - multiplying two digit numbers by one number

Let’s watch the video and see

how we solve these problems.

https://www.khanacademy.org/math/arithmetic/mul

tiplication-division/multi_digit_multiplication/v/2-

digit-times-1-digit-example

Page 27: U2 L2   math - multiplying two digit numbers by one number

So there is a process we can

follow…….

Watch me while I demonstrate a

few problems.

Page 28: U2 L2   math - multiplying two digit numbers by one number

Let’s Practice

Try practice problems # 1-

16 in your books on page

number 17.

Page 29: U2 L2   math - multiplying two digit numbers by one number

Switch books with your partner and

check your answers:

1. 88 9. 132

2. 132 10. 280

3. 48 11. 87

4. 39 12. 215

5. 72 13. 112

6. 104 14. 108

7. 161 15. 144

8. 96 16. 144

Page 30: U2 L2   math - multiplying two digit numbers by one number

Let’s Practice

Try practice problems # 1-

15 in your books on page

number 18.

This time instead of writing

your answers in standard

form (120) write them in

word form (one hundred

twenty)

Page 31: U2 L2   math - multiplying two digit numbers by one number

Switch books with your partner and

check your answers: 1. One hundred seventy.

2. One hundred thirty-eight.

3. Ninety.

4. Seventy-two.

5. Ninety-two.

6. Three hundred forty-eight.

7. One hundred five.

8. Five hundred twelve.

9. Two hundred twenty-eight.

10. Ninety-two.

11. Eighty-one.

12. Three hundred fifty-seven.

13. One hundred twenty-five.

14. One hundred nineteen.

15. Three hundred forty-four.

Page 32: U2 L2   math - multiplying two digit numbers by one number

Word Problems

We are going to work on word

problems.

One good way to solve word

problems is by turning them into

picture stories.

I’m going to give you a worksheet

and we are going to work on

changing these word problems into

picture problems.

Page 33: U2 L2   math - multiplying two digit numbers by one number

The park’s sprinklers can spray 33 liters of

water on the grass in one minute. How

many liters can they spray in 8 minutes?

Page 34: U2 L2   math - multiplying two digit numbers by one number

The girl’s swimming team had practice

today. The 8 girls swam 26 laps each.

How many laps did they swim

altogether?

26 26 26 26 26 26 26 26

Page 35: U2 L2   math - multiplying two digit numbers by one number

Paul’s pet snail can move 6 centimeters

(cm) in one minute. How many

centimeters (cm) can it move in 20

minutes?

6 cm 1 minute

Page 36: U2 L2   math - multiplying two digit numbers by one number

The library’s internet connection can

transfer 42 megabytes of data every

second. How many megabytes can it

transfer in 7 seconds?

Page 37: U2 L2   math - multiplying two digit numbers by one number

Each Northern Airlines jet plane can

carry 52 people. The airline has 8 planes.

How many people can be carried at

the same time?

Page 38: U2 L2   math - multiplying two digit numbers by one number

Each city bus can carry 48 people. How

many people can 5 buses carry?