Приёмы быстрого счёта
24 примера
Имя
Дата
- 31 × 5 =
- 33 × 11 =
- 27 × 5 =
- 17 × 17 =
- 14 × 14 =
- 42 × 25 =
- 66 × 5 =
- 41 × 11 =
- 94 × 5 =
- 24 × 24 =
- 23 × 25 =
- 18 × 9 =
- 37 × 9 =
- 52 × 5 =
- 52 × 25 =
- 43 × 11 =
- 34 × 11 =
- 15 × 9 =
- 79 × 11 =
- 19 × 5 =
- 48 × 11 =
- 44 × 5 =
- 87 × 25 =
- 16 × 25 =
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Приёмы счёта