In our normal base 10 number system, each digit has a value ten times bigger than the digit to its right and ten times smaller than the digit to its left.
The column before (left of) the decimal point is the units (or ones) column. The column to its left is ten times bigger than this at 1 × 10 = 10 - the tens column; the column to the left of the tens column is tens times bigger than this at 10 × 10 = 100 - the hundreds column, and so on.
From the tens column, the column to its right is ten times smaller than this at 10 ÷ 10 = 1 - the units column; the column to the right of the units column (after the decimal point) is ten times smaller than this at 1 ÷ 10 = 1/10 = 0.1 - the tenths column; the column to its right is ten times smaller than this at 1/10 ÷ 10 = 1/100 = 0.01 - the hundredths column, and so on.
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It depends on what country you are in, because the usage varies. It can be either 1015 or 1024. See the related link for more details.
Yes you can. You can get the answers either by working the exercises, orfrom any 7th Grade math teacher who uses that particular publication.In fact, here's an idea: Any 7th Grade math teacher, whether or not [s]he usesthat particular publication, would be thrilled to help you work the exercises.
The answer is either y48 or 8y6.The answer is either y48 or 8y6.The answer is either y48 or 8y6.The answer is either y48 or 8y6.
Either can be used for symmetrical distributions. For skewed data, the median may be more a appropriate measure of the central tendency - the "average".
Either 6 + 0.4, or 6 - 0.4.Either 6 + 0.4, or 6 - 0.4.Either 6 + 0.4, or 6 - 0.4.Either 6 + 0.4, or 6 - 0.4.