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13 18 13 + 18 31 6 25 25 25 25 25

13 18 13 + 18 31 6 25 25 25 25 25. 1. + = = = 1. 7 11 7 + 11 18 6 1 12 12 12 12 12 2. 2.

iliana-burris
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13 18 13 + 18 31 6 25 25 25 25 25

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  1. 1318 13 + 1831 6 25 25 25 25 25 1. + = = = 1 7 117 + 1118 6 1 12 12 12 12 12 2 2. 15 + 32 = 47 = 47 = 48 = 48 3521 35 - 2114 7 52 52 52 52 26 3. - = = = 7 37 - 3 4 11 11 11 11 4. 28 - 15 = 13 = 13 2 132 - 1315 + 2 - 13 4 15 15 15 15 15 5. 34 - 19 = 15 = 14 = 14 Hier müssen Sie ein Ganzes in 15 Fünfzehntel umwandeln! 1920 – 19 1 20 20 20 6. 48 - = 47 = 47 Hier müssen Sie ein Ganzes in 20 Zwanzigstel umwandeln! 5 5 9 - 5 4 9 9 9 9 7. 76 - 33 = 43 = 42 = 42 Hier müssen Sie ein Ganzes in 9 Neuntel umwandeln!

  2. 1644 34 941359441 45 45 45 45 45 45 45 1. 85 - - - = 85 = 82 - = 82 Hier müssen Sie drei Ganze in jeweils 45 Fünfundvierzigstel umwandeln! (3 * 45 = 145) 1711 93740 37 3 20 20 20 20 20 20 20 2. 97 - 13 - 25 - 9 = 50 - = 48 - = 48 Hier müssen Sie zwei Ganze in jeweils 20 Zwanzigstel umwandeln! (2 * 20 = 40) 3 7 10 93 - 2636 - 2610 11 11 11 11 11 11 11 85 - 14 - 46 - 5 = 20 = 17 - = 17 Hier müssen Sie drei Ganze in jeweils 11 Elftel umwandeln! (3 * 11 = 33) 1 7 5 3 8 8 8 8 48 - 15 + 3 - 19 6 - 10 8 8 + 6 – 10 4 1 8 8 2 = 17 = 16 = 16 = 16

  3. 4 4 3 3 1 4 1 3 = ? 1 2 kann auch 4 8 sein oder

  4. * 4 * 7 1. 5 3 20 + 21 41 13 7 4 28 28 28 5 + 6 = 11 = 11 = 12 * 3 2. 23 7 23 - 21 2 1 36 12 36 36 18 5 - 3 = 2 = 2 = 2 * 10 * 18 * 15 3. 2 5 1 36 + 50 + 1510111 5 9 6 90 90 90 2 + 3 + 8 = 13 = 13 = 14 * 20 * 6 * 15 4. 3 2 1 18 – 40 - 1518 - 5578 – 5523 10 3 4 60 60 60 60 8 - 5 - 2 = 1 = 1 = = Hier müssen Sie ein Ganzes in 60 Sechzigstel umwandeln! (60+18=78) 3 5 16 7 4 7 21 12 + + + * 25 * 18 * 30 5 17 13 125 + 306 + 390 821371 18 25 15 450 450 450 28 + 43 + 47 = 118 = 118 = 119 1315           18  = 2  *  3  *  3           25  =                         5  *  515  =                3  *  5                   HN = kgV =  2  *  3  *  3  *  5  *  5  =  450 1725 518

  5. 1 1 1 1 1 1 1 6 3 14 4 4 4 4 4 4 4 2 2 6 * = * * * * * = = = 1 1 6 * 1 6 3 14 4 4 2 2 6 * = = = = 1 1 12 2 * = ? 1 11 * 1 12 2 2 * 2 4 * = = 1 33 * 1 32 2 2 * 2 4 * = =

  6. 2 1. 6 13 26 11 15 55 2. 5 5 3 15 1 7 7 1 7 7 * = * 3 = * = = 2 5 3 5 1 3. 4 5 64 64 1 15 1 15 3 3 4. 3 4 27 40 15 8 9 8 9 1 5 * 4 = * = = 21 3 * 4 = * = = 15 3 1 1 2 1 3 5. 26 5 6 4 25 9 65 5 26 5 6 4 16 25 9 65 5 375 * * * = * * * = 3 5 1 6 8 2 5 18 6. 31 7 1 2 33 8 4 5 6410 55 1 72 64 1055 172480 33 1 8 4 5 33 1 8 4 5 1 1 * 10 * 6 * * 14 = * * * * = * * * * = = 480 3 1 1 1 1 Ursprünglicher Bruch Kehrwert 4 7 7 4 1 8 8 1 1 2 1 2 1 2 5 : 2 = 2 und 5 * = 2 4 1 1 4 4 =

  7. 2 2 1. 6 3 610 4 25 10 25 3 5 2. 5 3 7 21 1 7 1 5 5 5 * = * = 3 : = * = = 4 5 1 1 3. 5 5 4 5 1 5 8 8 1 8 4 32 4. 3 7 28 7 5 5 1 5 1 5 1 28 4 4 : 4 = : = * = 7 : 5 = : = * = = 1 4 29 1 5. 4 158 16 9 3 9 3 58 3 29 5 9 16 24 24 6 : 5 = : = * = = 1 3 8 1 4 1 1 6. 211 1 3 111125 811 12 8 5 4 3 12 8 5 3 12 8 5 3 11 25 8 5 3 : : 3 : 1 = : : : = * * * = 1 1 5 1 3 7 1 7. 922 11 9 35 11 21 5 10 35 12 10 22 12 16 16 : * = * * : = = 1 2 2 4

  8. 6 17 2 4 6 17 9 68 6 17 68 9 6 17 68 9 8 3 2 3 = : = * = * = = 2 9 68 1 3

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