Adding decimals with ones and tenths parts

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The equivalent of one's complement in the binary system is nine's complement in the decimal system (1=2-1 and 9=10-1). With n-digit allocation, we can represent nine's complement numbers in the range of: -[(10^n / 2)-1] to [(10^n / 2-1)]. The nine's complement of a number with n digit allocation is obtained as follows. If the number is positive, the nine's complement of the number is itself. If the number is negative, we subtract each digit from 9. Answer the following questions for three-digit

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Adding Decimals Activity Sheet

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