2 + 5 |
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Tables of subtraction |
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Instructions: Press one of the buttons on the right column The correct number is put in red .
In the combined operations, you must do the first operation with the first two numbers. Then, you must do the second operation with the result and the third number. Draw a circle in one of the three letters: a, b, c.
®Arturo Ramo García.-Record of intellectual property of Teruel (Spain) No 141, of 29-IX-1999 Plaza Playa de Aro, 3, 1º DO 44002-TERUEL