Grade 5 students compare decimal prices in real money word problems, padding values like $0.5 to $0.50 to align place value. They identify the cheapest item, reason about magnitude using tenths and hundredths, and confirm equivalent decimals such as $2.3 and $2.30 share the same value. Sentence completion, fill-in, and short answer prompts build mastery of 5.NBT.3b comparison skills using ascending order and place value vocabulary.
Style:
Comparing and Ordering Decimals
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
A pen costs $0.45 and a pencil costs $0.5. The pencil is cheaper because 5 is less than 45.
Rewrite: A pen costs $0.45 and a pencil costs $0.5. The pen is cheaper because $0.45 is less than $0.50.
2. Fix the sentence:
Juice is $1.7 and milk is $1.07, so milk is more expensive because it has more digits.
Rewrite: Juice is $1.7 and milk is $1.07, so juice is more expensive because $1.70 is greater than $1.07.
3. Fix the sentence:
Apples cost $2.30 and pears cost $2.3. The apples are cheaper because $2.30 is smaller.
Rewrite: Apples cost $2.30 and pears cost $2.3. The apples and pears cost the same because $2.30 equals $2.30.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. A bagel is $1.25 and a muffin is $1.52. The cheaper item is the bagel.
2. A notebook costs $3.08 and a folder costs $3.8. The cheaper item costs $3.08.
3. Yogurt is $0.79 and pudding is $0.97. The price with the smaller magnitude is $0.79.
4. Crackers cost $4.6 and chips cost $4.06. The cheapest snack is the chips.
Part C: Short Answer
Answer each question in one or two complete sentences.
1. Mia sees three drinks: water for $1.25, juice for $1.5, and tea for $1.05. Which drink is cheapest, and how do you know?
Tea is cheapest at $1.05. I padded $1.5 to $1.50, then compared the tenths place. Tea has 0 tenths, water has 2 tenths, and juice has 5 tenths, so $1.05 is the smallest in ascending order.
2. Two stores sell the same eraser. Store A charges $0.6 and Store B charges $0.60. Which store is cheaper? Explain your reasoning.
Neither store is cheaper because $0.6 and $0.60 are equal. The trailing zero in $0.60 does not change the value — both prices have 6 tenths and 0 hundredths, so they have the same magnitude.
Comparing and Ordering Decimals
★ Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1) Fix the sentence:
A pen costs $0.45 and a pencil costs $0.5. The pencil is cheaper because 5 is less than 45.
Rewrite: A pen costs $0.45 and a pencil costs $0.5. The pen is cheaper because $0.45 is less than $0.50.
2) Fix the sentence:
Juice is $1.7 and milk is $1.07, so milk is more expensive because it has more digits.
Rewrite: Juice is $1.7 and milk is $1.07, so juice is more expensive because $1.70 is greater than $1.07.
3) Fix the sentence:
Apples cost $2.30 and pears cost $2.3. The apples are cheaper because $2.30 is smaller.
Rewrite: Apples cost $2.30 and pears cost $2.3. The apples and pears cost the same because $2.30 equals $2.30.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) A bagel is $1.25 and a muffin is $1.52. The cheaper item is the bagel.
2) A notebook costs $3.08 and a folder costs $3.8. The cheaper item costs $3.08.
3) Yogurt is $0.79 and pudding is $0.97. The price with the smaller magnitude is $0.79.
4) Crackers cost $4.6 and chips cost $4.06. The cheapest snack is the chips.
★ Part C: Short Answer
Answer each question in one or two complete sentences.
1) Mia sees three drinks: water for $1.25, juice for $1.5, and tea for $1.05. Which drink is cheapest, and how do you know?
Tea is cheapest at $1.05. I padded $1.5 to $1.50, then compared the tenths place. Tea has 0 tenths, water has 2 tenths, and juice has 5 tenths, so $1.05 is the smallest in ascending order.
2) Two stores sell the same eraser. Store A charges $0.6 and Store B charges $0.60. Which store is cheaper? Explain your reasoning.
Neither store is cheaper because $0.6 and $0.60 are equal. The trailing zero in $0.60 does not change the value — both prices have 6 tenths and 0 hundredths, so they have the same magnitude.
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