Download Single Digit Whole Number Addition Flash Cards

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Transcript
Single Digit
Whole Number
Multiplication
FlashCards
The Whole Numbers are the
natural numbers (1, 2, 3, …),
and the number zero (0).
When we multiply one (1) by any number,
the result (product) is the number that one
was multiplied by, regardless as to
whether one was multiplied by the original
number before it, or after it.
The rule reads:
1xa = a
or
ax1 = a
So 1 x 5 = 5 and 8 x 1 = 8
When we multiply any number by zero (0) , the
result (product) is zero, regardless as to whether
the original number was multplied by the number
before it, or after it.
The rule reads:
0xa = 0
or
ax0 = 0
So 0 x 7 = 0 and 9 x 0 = 0
When we multiply two numbers, the order
doesn’t matter; that is, the product (result) is the
same.
The rule (of Commutivity for Multiplication)
states:
axb = bxa
Just as 4 x 7 = 28,
it is also true that 7 x 4 = 28 .
You may have remembered being asked
to memorize whole number multiplication
facts (your “multiplication tables”) in grade
school.
The next slide is a table of products of
whole numbers 0 through 12.
• To use this table, simply take any number
in the top row and follow down that column
and any number in the first column and
follow across that row, and their product
can be found where that column and row
intersect.
• Notice that the product :
6 x 9 = 54
can be found by using the above mentioned
process with the table… see next slide…
• But we could have started with the 9th
column and the 6th row, and notice that
the same product (54) can be found where
that column and row intersect too!
• This is because of commutivity; that is,
9 x 6 = 54 just as
See the next slide…
6 x 9 = 54
• The next 91 slides will be randomly mixed “flash cards” for
multiplying whole numbers 0 through 12, which drill &
practice the facts from the multiplication table we just
reviewed. The answers will be revealed (UPSIDE DOWN)
two seconds after the “flash card” pops up
• Use the “NEXT” button (below on the right) to get more
“flash cards”.
• If you wish to end the session, use the “END” button
(below on the left)
4 x 7 = ?
12 x 5 = ?
0 x 8 = ?
3 x 11 = ?
8 x 2 = ?
12 x 7 = ?
1 x 5 = ?
6 x 9 = ?
10 x 0 = ?
7 x 6 = ?
8 x 12 = ?
2 x 4 = ?
11 x 6 = ?
9 x 3 = ?
4 x 5 = ?
10 x 10 = ?
0 x 3 = ?
11 x 1 = ?
9 x 5 = ?
12 x 11 = ?
6 x 6 = ?
8 x 4 = ?
10 x 4 = ?
2 x 1 = ?
7 x 11 = ?
2 x 6 = ?
7 x 7 = ?
10 x 3 = ?
4 x 0 = ?
9 x 4 = ?
11 x 8 = ?
6 x 1 = ?
0 x 12 = ?
5 x 6 = ?
4 x 11 = ?
2 x 12 = ?
8 x 9 = ?
0 x 5 = ?
3 x 2 = ?
11 x 9 = ?
6 x 3 = ?
12 x 6 = ?
2 x 7 = ?
1 x 0 = ?
12 x 12 = ?
3 x 4 = ?
5 x 11 = ?
7 x 9 = ?
2 x 10 = ?
0 x 2 = ?
12 x 1 = ?
6 x 8 = ?
1 x 9 = ?
11 x 10 = ?
7 x 3 = ?
2 x 2 = ?
9 x 12 = ?
8 x 7 = ?
0 x 7 = ?
6 x 10 = ?
7 x 5 = ?
3 x 3 = ?
10 x 5 = ?
5 x 8 = ?
6 x 0 = ?
8 x 10 = ?
1 x 3 = ?
0 x 0 = ?
10 x 7 = ?
7 x 1 = ?
2 x 9 = ?
12 x 4 = ?
4 x 4 = ?
9 x 0 = ?
11 x 2 = ?
3 x 8 = ?
1 x 8 = ?
12 x 3 = ?
9 x 9 = ?
4 x 6 = ?
10 x 12 = ?
1 x 1 = ?
5 x 3 = ?
11 x 11 = ?
8 x 8 = ?
9 x 10 = ?
5 x 2 = ?
10 x 1 = ?
1 x 4 = ?
11 x 0 = ?
5 x 5 = ?
Wow!
You actually reviewed every one of those 91
multiplication problem flash cards…
Good for you!
Come back anytime to review these
multiplication facts, if you begin to feel rusty.
Close the document by first pushing the “ESC”
(Escape) button in the top left corner of
your keyboard, and then click on the red
in the top right corner of the dialog box.
Thank you for reviewing
your multiplication facts…
May the force
be with you…
Close the document by first pushing the “ESC”
(Escape) button in the top left corner of your
keyboard, and then click on the red
in the top right corner of the dialog box.