2 cookies, each
having 9 chocolate chips, equal 18 chocolate chips
9 + 9 = 18 (Repeated Addition)
2 x 9 = 18 (Algorithm)
Base Pictures
The
picture used to help you remember 2 x 9 will contain a shoe (2) and a
sign (9).
The picture also shows a toe that is
aching (18) to help you remember the answer.
2
(Shoe) x 9
(Sign) = 18
(Aching)
2 = SHOE
9 = SIGN
Picture & Story
Please be patient while
the video loads.
Using Your Fingers - 2 x 9 = 18
Step 1
Put your hands on the table in front of you.
Step 2
Your fingers represent the numbers 1 through 10.
Step 3
- Each finger to the left of the curled finger represents 10.
- Say 10,
- Each finger to the right of the curled finger represents one.
- Count 1, 2, 3, 4, 5, 6, 7, 8 . (Or 11, 12, 13, 14, 15, 16,
17, 18)
- 2 x 9 = 18
Other Tips on Remembering 2 x 9 = 18
Doubling
Another trick to remember the TWOs is doubling
9 doubled is 18 (9 + 9 = 18)
Skip Counting
Skip counting is counting while skipping one or more numbers.
To skip count by 2's, skip a number while counting.
(2...4...6...8...) Many refer to this a "counting by 2's
2 x 9 is skip counting nine times or
2...4...6...8...10...12...14...16...18 and you are at the answer
Practice
To help remember 2 x 9= 18, do the
following.
Watch the video and listen to the story 3 or 4 times.
Close your eyes and see the picture.
Draw the picture you see for 2 x 9 = 18. (From memory)
