Приёмы быстрого счёта
24 примера
Имя
Дата
- 51 × 5 =
- 22 × 25 =
- 18 × 18 =
- 23 × 23 =
- 30 × 5 =
- 96 × 5 =
- 38 × 11 =
- 50 × 11 =
- 39 × 9 =
- 30 × 30 =
- 56 × 5 =
- 13 × 11 =
- 46 × 11 =
- 23 × 9 =
- 65 × 25 =
- 57 × 11 =
- 53 × 5 =
- 66 × 9 =
- 38 × 25 =
- 40 × 5 =
- 79 × 25 =
- 75 × 9 =
- 54 × 25 =
- 15 × 25 =
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Приёмы счёта