Page 245 - Mind Games The Aging Brain and How to Keep it Healthy

Enjoy Your Ageless Mental Agility • 229

Try this again. This time you’ll multiply 6 x 9. First tuck
finger #6, the thumb of your right hand, under your hand,
as in Figure 7-4. There are 5 fingers up on the left of finger
number 6 and 4 fingers up on the right of finger number 6
Six times nine is 54.

5 fingers 4 fingers

6

Figure 7-4 6 times 9 is 54

This is something you might share with someone else.
Practice a few times by yourself, and then teach this trick to
a friend or a child who is learning the multiplication tables.

@ Inductive Reasoning Exercises
In each problem, write the next term in the sequence. Also,
write the reason why you think that is the next term.

1. 1, 5, 9, 13, . . . _____ _________________

2. D, H, L, . . . _____ _________________

3. 15, 14, 12, 9, . . . _____ _________________
4. 1, 10, 3, 12, 5, 14, 7, . . . _____ _________________
5. 625, 125, 25, . . . _____ _________________

6. J, F, M, A, M, . . . _____ _________________
7. 1, 8, 27, 64, . . . _____ _________________
8. 1, 101, 1001, 10001, . . . _____ _________________