Bengt Drath Prata matematik okt 2010 - Pedagog Stockholm
Bengt Drath Prata matematik okt 2010 - Pedagog Stockholm
Bengt Drath Prata matematik okt 2010 - Pedagog Stockholm
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92 – 17 =• 80 – 5 = 75 eller egentligen 80 + (-5) = 75• 90 – 17 + 2 = 75• 72+3=7575• 95 – 20 = 75• 90 – 15 = 75• 3 + 70 + 2 = 75
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