## Thursday

### Number Games/Tricks

Here are some number games/tricks we've been playing around with lately...

#1

step 1: Write a number
step 3: double the new number
step 4: subtract 4
step 5: divide the new number by 2
step 6: subtract your original number

example:

155 + 9= 164 164 x 2= 328 328 - 4= 324 324/2 = 162 162 - 155= 7 #2

Step 1: In what month were you born? Write the number that stands for that month (1 for Jan, 2 for Feb...etc)
Step 2: Double that number
Step 4: Multiply your new number by 50
Step 5: Add the day of your birth (if you were born on June 15, add 15)
Step 6: Subtract 365
(To determine the birthday add 65 to the answer above, then divide that number into a numerically written date- a slash between the tens and hundreds place) and that will be the birthday)

Example of an Oct 31 birthday:

10 x 2= 20 20 + 6= 26 26 x 50= 1300 1300 + 31= 1331 1331 - 365= 966

966 + 65= 1031 or 10/31 #3

Step 1: pick a number between 1-99
Step 2: multiply by 2
Step 4: multiply by 5
Step 5: subtract 155
Step 6: multiply by 10
Step 7: subtract 200
Step 8: cross off the last 2 digits (tens and ones place) and you will be left with your original number

example:

54 x 2= 108 108 + 35= 143 143 x 5=715 715 - 155= 560 560 x 10= 5600 5600 - 200= 5400....cross off the 2 zeros and you are left with 54

#### 1 comment:

1. :) great games!