Приёмы быстрого счёта
24 примера
Имя
Дата
- 57 × 11 =
- 17 × 17 =
- 14 × 14 =
- 10 × 25 =
- 49 × 25 =
- 19 × 5 =
- 32 × 5 =
- 60 × 5 =
- 81 × 25 =
- 17 × 9 =
- 20 × 9 =
- 30 × 30 =
- 97 × 9 =
- 29 × 9 =
- 24 × 24 =
- 55 × 5 =
- 35 × 5 =
- 23 × 23 =
- 35 × 11 =
- 90 × 5 =
- 32 × 11 =
- 13 × 9 =
- 44 × 25 =
- 49 × 9 =
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Приёмы счёта