Multiplying by 11 Trick
Presentation
•
Mathematics
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3rd - 4th Grade
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Hard
Joseph Anderson
FREE Resource
10 Slides • 6 Questions
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Multiplying by 11: Extending the Sequence
I am learning to use what I know about properties of multiplication and place value to multiply numbers by 11.
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Yesterday we learned
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How does it work?
Mary’s older brother taught her a “trick” to multiply two-digit numbers by 11. He said,
“When multiplying any two-digit number by 11, just add the two single digits together to identify the middle number. For example,
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Multiple Select
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Yes, this works for 11x13
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Yes, this works for 11x14
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Yes this works for 11x15
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Fill in the Blanks
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11
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Fill in the Blanks
Multiplying by 11: Extending the Sequence
I am learning to use what I know about properties of multiplication and place value to multiply numbers by 11.
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