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De Orilla a Orilla and I*EARN-ORILLAS Center
International Education and Resource Network- I*EARN
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Connecting Math: Just for Fun #11
Magic Inversions

1. Here are some pairs of numbers for which the sum and the product are the same, excepting only the position of the figures:

9+9=18; 9x9=81;
24+3=27; 24x3=72

Try to find other similar numbers!
Here is other solution: 47+2=49; 47x2=94

2. A housewife was coming back home from the market carrying in her shopping basket three ducks, two rabbits and four hens. How many feet were coming from the market?

Ana Maria Ene
5th grade
"Duiliu Zamfirescu" School, FOCSANI, Romania
Teacher: Petru Dumitru