Fun with Numbers
Write on index cards for your math center
or give to the class orally for Fun Friday!!!
Paddy Number 1
Choose any number 34
Multiply by 9 34x9=306
Add the numbers in the products 3+0+6=9
The sum of the number can be divided by 9 without a
remainder 9/9=1
Paddy Number 2
Choose any number 15
Multiply by 5 15x5=75
Add 6 to the product 75+6=81
Multiply the sum by 4 81X4=320
Add 9 to the product 320+9=329
Multiply the sum by 5 329X5=1,645
Cross off the last 2 digits 16
Subtract 1 from the results 16-1=15
(The answer should be the number you stated with.)
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