Practice Test
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Plot the numbers on a number line.
7/10, 0.74, 4/5, 85 %
We want to order the given numbers from least to greatest. 85 %, 7/10, 0.74, 4/5 To do this, we will rewrite every number as a decimal number. At first, let's rewrite the percents. To do this, we ignore the percent symbol and move the decimal point two places to the left. Let's do it!
a/b=a * 10/b * 10
Multiply
Write as a decimal
Now we know that 710 as a decimal number is 0.70. Let's continue with 45.
Decimal form of 45 is 0.80. Let's take a look back at our set of numbers. 85 %, 7/10, 0.74, 4/5 ⇕ 0.85, 0.70, 0.74, 0.80 Now, we can write the given numbers in order from least to greatest by plotting them on a number line.
The number that is the farthest to the left is 710, so it is the least from the list. The farthest to the right is 85 per, so it is the greatest.
Finally, we can write the values in order from least to greatest by moving from left to right on the number line. Let's do this! 7/10, 0.74, 4/5, 85 %