Приёмы быстрого счёта
24 примера
Имя
Дата
- 64 × 9 =
- 9 × 25 =
- 20 × 5 =
- 61 × 25 =
- 62 × 11 =
- 91 × 25 =
- 99 × 9 =
- 14 × 25 =
- 24 × 24 =
- 31 × 9 =
- 42 × 5 =
- 61 × 11 =
- 89 × 11 =
- 30 × 9 =
- 59 × 5 =
- 45 × 25 =
- 71 × 9 =
- 12 × 9 =
- 34 × 5 =
- 54 × 11 =
- 60 × 25 =
- 81 × 5 =
- 25 × 25 =
- 23 × 23 =
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Приёмы счёта