Reihentraining: Das Einmaleins meistern

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Verbinde jede Multiplikationsaufgabe mit dem passenden Ergebnis.
{"bit":{"type":"matrix","interaction":{"type":"matrix","layout":"checkbox","columns":[{"id":"c1","label":"21"},{"id":"c2","label":"30"},{"id":"c3","label":"36"},{"id":"c4","label":"56"}],"rows":[{"id":"r1","label":"3 × 7"},{"id":"r2","label":"5 × 6"},{"id":"r3","label":"4 × 9"},{"id":"r4","label":"8 × 7"}]},"solution":[["r1","c1"],["r2","c2"],["r3","c3"],["r4","c4"]]}}
{"range":"1-10","operators":["*"],"problems":"2 * 3 =\n2 * 30 =\n2 * 300 =\n4 * 7 =\n4 * 70 =\n5 * 60 =\n30 * 9 =\n7 * 6 =\n7 * 60 =\n70 * 60 =\n70 * 600 =\n4 * 40 =\n7 * 70 =\n80 * 8 =\n40 * 7 =\n"}
{"range":"1-20","operators":["*"],"problems":"3 * 3 =\n4 * 5 =\n3 * 4 =\n4 * 8 =\n4 * 6 =\n3 * 6 =\n5 * 7 =\n3 * 8 =\n3 * 2 =\n4 * 9 =\n6 * 9 =\n7 * 8 =\n8 * 6 =\n9 * 3 =\n4 * 7 =\n5 * 9 =\n8 * 8 =\n6 * 8 =\n7 * 6 ="}