Comparing and Ordering Decimals Mastery

The video tutorial explains how to order and compare decimals, focusing on common misconceptions such as assuming a decimal with more digits is larger. It provides a step-by-step guide to ordering decimals from least to greatest by comparing digits from left to right. The tutorial also addresses comparing decimals with different numbers of digits after the decimal point, emphasizing the importance of focusing on the first differing digit. A trick is shared to equalize the number of digits by adding zeros, making comparison easier.

Why can comparing decimals sometimes be difficult?

• Because they are always greater than whole numbers.

• Because they have more digits which can be misleading.

• Because they are always less than whole numbers.

• Because they are always equal.

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What is the first step in ordering decimals from least to greatest?

• Add zeros to make them equal.

• Start from the left and work your way to the right.

• Compare the number of digits first.

• Start from the right and work your way to the left.

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In the example given, which decimal is the smallest?

• The one with a 5 in the second place.

• The one with a 7 in the third place.

• The one with a 4 in the second place.

• The one with a 2 in the third place.

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What should you do if two decimals have the same digits in the first few places?

• Compare the digits to the left.

• Add zeros to the end.

• Compare the next digit to the right.

• Stop comparing as they are equal.

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When comparing 567 and 57, which is greater?

• They are equal.

• 567

• 57

• Cannot be determined.

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How do you compare decimals with different numbers of digits behind the decimal?

• Add zeros to make the number of digits equal.

• Compare only the whole number part.

• Ignore the extra digits.

• Compare the digits from right to left.

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What is the significance of the first different digit when comparing decimals?

• It is always greater.

• It determines which decimal is greater.

• It is always smaller.

• It is ignored.

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What trick can you use to compare decimals with different lengths?

• Compare only the whole numbers.

• Remove the decimal point.

• Add zeros to the shorter decimal.

• Add a decimal point.

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CCSS.4.NF.C.7

If you have 0.567 and 0.57, which is greater?

• 0.567

• Cannot be determined.

• They are equal.

• 0.57

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CCSS.4.NF.C.7

What is the result of adding a zero to 0.57 to compare it with 0.567?

• 0.57 becomes 0.57, making it harder to compare.

• 0.57 becomes 0.57, which is still the same.

• 0.57 becomes 0.570, making it easier to compare.

• 0.57 becomes 0.570, which is smaller.

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CCSS.5.NBT.A.3B