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Внеклассное занятие PowerPoint PPT Presentation


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Внеклассное занятие. Римские цифры. План занятия. 1.Из истории римских цифр. 2 Система записи и чтения римских цифр. 3. Тренировочные упражнения. Работа со спичками. 1. Из истории цифр.

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Внеклассное занятие

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XXXVI = 10+10+10+5+1 = 36

CLXII = 100+ 50 +10+2 =162

XL =50 10 = 40

CXL = 100+ ( 50 -10) = 140.


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102 = 100 +1+1 = CII.

374 = 100+100+100+ 50+ 10+10 +(5-4)= CCCL XX I V,


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