Describe how plave value is used to compare decimals.
2006-10-26 09:57:30 · 2 answers · asked by Double A 3 in Education & Reference ➔ Homework Help
To compare two numbers in decimal form, line up the digits according to their place value. Then start from the highest place value and start comparing digits.
Example: 2.756 and 2.782
The ones digit is 2 in both cases.
The tenths digit is 7 in both cases.
The hundredths digit is 5 for the first number, and 8 for the second.
The thousandths digit is 6 for the first number, and 2 for the second.
The ones digits have the greatest place value, so compare them first. They are equal, so move to the tenths digit, because they have the next highest place value. They are also equal, so move down to the hundredths digit. The second number has the higher digit in this place, so the second number is greater.
On the other hand, comparing 12.9 with 8.6: line up the digits again by place value.
tens digit: 1 for the first number, 0 for the second (since there's nothing there)
ones digit: 2 for the first number, 8 for the second
tenths digit: 9 for the first number, 6 for the second
Again, start with the highest place value, which is 10. The digits in this place are 1 and 0, so immediately you conclude the first number is greater.
2006-10-26 10:06:16 · answer #1 · answered by James L 5 · 0⤊ 0⤋
im not sure what dat is
2006-10-26 10:15:26 · answer #2 · answered by alleniversonzdiva4lyfe 2 · 0⤊ 0⤋