Математическая арифметика. Практическое руководство для педагогов дошкольных учреждений. Зоя Ичин-Норбу

Чтение книги онлайн.

      15 – 8 = 7 и 15 – 7 = 8

      16 – 9 = 7 и 16 – 9 = 7

      17 – 9 = 8 и 17 – 8 = 9

      Задание №11. СВОЙСТВА «ЕДИНИЦЫ» при УМНОЖЕНИИ

      а · 1 = 1 · а = а – переместительный закон умножения.

      Запиши результат произведения числа и единицы в каждом примере.

      13 · 1 = 1 · 13 =

      1 · 148 = 148 · 1 =

      1000 · 1 = 1 · 1000 =

      1 · 999 = 999 · 1 =

      Как называется математический закон, который ты применил при выполнении задания?

      Задание №12. ПРОИЗВЕДЕНИЕ

      Произведение 

      Конец ознакомительного фрагмента.

      Текст предоставлен ООО «ЛитРес».

      Прочитайте эту книгу целиком, купив полную легальную версию на ЛитРес.

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