Приёмы быстрого счёта
24 примера
Имя
Дата
- 23 × 23 =
- 77 × 11 =
- 67 × 5 =
- 22 × 11 =
- 70 × 25 =
- 56 × 25 =
- 88 × 5 =
- 39 × 9 =
- 81 × 11 =
- 62 × 9 =
- 78 × 9 =
- 85 × 9 =
- 16 × 16 =
- 41 × 5 =
- 13 × 13 =
- 42 × 9 =
- 26 × 26 =
- 87 × 25 =
- 71 × 5 =
- 22 × 25 =
- 28 × 28 =
- 61 × 5 =
- 29 × 25 =
- 89 × 25 =
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Приёмы счёта