
15 x Tables
Presentation
•
Mathematics
•
3rd - 5th Grade
•
Medium
Standards-aligned
Samantha Narciso
Used 38+ times
FREE Resource
5 Slides • 5 Questions
1
Multiply by 15
I am learning to use what I know about properties of multiplication and place value to multiply numbers by 15.
2
Success Criteria
I can use the distributive property to multiply numbers within 15 by 15.
3
For all of our multiplication times tabls above 10, we've used the distributive property.
We have split every number into 10 + _
This has made it easier for us to multiply quicker
We also used a trick for the 11 times table, where we add the digits of the number together and then put this sum between the original two digits.
For example, 11 x 14 is 154 because 1+4=5, and we put 1 and 4 around it.
4
Today, we're finishing up our multiplication bootcamp.
We will focus on 15, so we will split 15 into 5 and 10 if we use the distributive property.
5
But before we start, I have a trick for you:
If you're multiplying 15 by a number greater than 10, multiply the digit in the ones place by 15 and then add it to 150.
6
Fill in the Blanks
15 x 5
Type answer...
7
Fill in the Blanks
15 x 7
Type answer...
8
Fill in the Blanks
15 x 9
Type answer...
9
Fill in the Blanks
15 x 13
Type answer...
10
Fill in the Blanks
15 x 15
Type answer...
Multiply by 15
I am learning to use what I know about properties of multiplication and place value to multiply numbers by 15.
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