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2 Digit by 2 Digit Multiplication

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Presentation on theme: "2 Digit by 2 Digit Multiplication"— Presentation transcript:

1 2 Digit by 2 Digit Multiplication

2 X 23

3 THINK: 36 X 3 FIRST

4 36 X 3 3 X 6 = 18 Carry the one 3 X 3 = 9 and one more is 10

5 1 36 X 3 10 8

6 1 36 X 23 10 8 Cross out the 1 after you use it

7 NOW THINK: “I am multiplying 36 X 20”
3 6 X 23 108

8 1st-THINK: “I am multiplying by tens so I need a zero.”
36 X 23 108

9 THINK: 2 x 6 = 12 Write down the 2 and carry the one.

10 1 1 36 X 23 10 8 20

11 2 X 3 = 6 Add the one you carried over to make

12 36 X 23 10 8 72 0 1 1

13 1 CROSS OUT THE NUMBER AFTER YOU USE IT. 36 X 23 10 8 72 0

14 SINCE MULTIPLICATION IS A FORM OF ADDITION AND WE ARE GROUPING OUR ANSWERS TOGETHER WE WILL ADD THE TWO NUMBERS TO GET THE FINAL PRODUCT

15 36 X 23 10 8 8 2 8


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