Приёмы быстрого счёта
24 примера
Имя
Дата
- 16 × 11 =
- 18 × 25 =
- 71 × 9 =
- 22 × 5 =
- 18 × 5 =
- 29 × 29 =
- 19 × 19 =
- 49 × 5 =
- 41 × 11 =
- 60 × 11 =
- 14 × 9 =
- 79 × 9 =
- 61 × 25 =
- 69 × 25 =
- 24 × 24 =
- 34 × 25 =
- 68 × 9 =
- 11 × 25 =
- 85 × 5 =
- 34 × 5 =
- 84 × 9 =
- 95 × 11 =
- 74 × 11 =
- 30 × 30 =
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Приёмы счёта