Приёмы быстрого счёта
24 примера
Имя
Дата
- 52 × 9 =
- 75 × 9 =
- 45 × 5 =
- 20 × 20 =
- 70 × 9 =
- 38 × 11 =
- 49 × 11 =
- 13 × 25 =
- 17 × 9 =
- 17 × 17 =
- 85 × 25 =
- 18 × 5 =
- 30 × 30 =
- 54 × 9 =
- 14 × 14 =
- 11 × 11 =
- 25 × 25 =
- 86 × 5 =
- 86 × 25 =
- 47 × 5 =
- 80 × 25 =
- 55 × 5 =
- 78 × 11 =
- 57 × 11 =
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Приёмы счёта