Fill in two zeros after 0.54, the number () A. Expand 100 times B. reduce 100 times C. remain unchanged

According to the nature of decimals: fill in two zeros after 0.54, the size of the number will not change; so choose: C

One tenth in 100 is equal to one tenth in 10

Wrong. The unit is different. One tenth of 100 is 10%, and one tenth of 10 is 10% (ten percent)

In 0.9, there are one tenth, one percent or one thousandth

In 0.9, there are [9] tenths, [90] percentages, and [900] thousandths

0.043 is composed of () one percent and () one thousandth

4,3

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