Calculator Answers: Problem Solving & Reasoning
Mathematics
Grade 7
18 questions
~36 mins
1 views0 downloads
About This Worksheet
A worksheet focusing on rounding calculator answers to two decimal places, combining procedural questions, multi-step problems, real-world contexts, and challenge extension questions to develop mastery.
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Full preview • 18 questions
Calculator Answers: Problem Solving & Reasoning
Subject: MathematicsGrade: Grade 7
Name:
Date:
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Untitled Worksheet
Grade Grade 7
A
Fluency & Practice
Calculate the following using your calculator and round your answer to 2 decimal places.
1.
Calculate 123.456789 rounded to 2 decimal places.
[2 marks]2.
Calculate 0.987654321 rounded to 2 decimal places.
[2 marks]3.
Calculate 456.78901 rounded to 2 decimal places.
[2 marks]4.
Calculate 78.999 rounded to 2 decimal places.
[2 marks]B
Problem Solving & Reasoning
Use your calculator to find the answers and explain your rounding process where necessary.
1.
A car travels 1234.56789 km over a week. Round the total distance to 2 decimal places for a report.
[4 marks]2.
A store's total sales amount to 98765.4321 dollars. Round this figure to 2 decimal places for accounting records.
[4 marks]3.
You multiply 12.34 by 56.78 using your calculator. Round the answer to 2 decimal places.
[3 marks]4.
A recipe requires 2.34567 liters of milk. Round to 2 decimal places.
[2 marks]5.
Calculate 789.123456 rounded to 2 decimal places.
[2 marks]C
Real-world Applications
Apply rounding to calculator answers in real-world contexts.
1.
A mobile phone plan costs $29.995 per month. Round to 2 decimal places for billing purposes.
[2 marks]2.
A scientist measures a sample to be 0.000456789 meters. Round to 2 decimal places for reporting.
[2 marks]3.
A factory produces 12345.6789 grams of a chemical. Round to 2 decimal places for inventory records.
[2 marks]D
Challenge & Extension
Tackle these more difficult problems involving rounding calculator answers.
1.
You divide 9876.54321 by 3.4567 using your calculator. Round the result to 2 decimal places.
[3 marks]2.
Estimate the total cost of 15 items priced at 19.995 each, rounded to 2 decimal places.
[3 marks]E
Mixed Review
Answer these questions involving different types of calculations and rounding.
1.
Calculate 0.55555555 and round to 2 decimal places.
[2 marks]2.
A total of 1234.5678 divided by 4 equals what when rounded to 2 decimal places?
[2 marks]F
Error Analysis
Identify the mistake in the following rounding attempts and correct it.
1.
A student rounded 3.14159 to 3.14 correctly, but then wrote 3.1 as the final answer. Explain the mistake and correct it.
[3 marks]2.
A calculator gives 56.789123. A student rounds it to 56.78, but writes 56.7 instead. What is the mistake?
[3 marks]Quick Actions
What is Remix?
Create a new worksheet based on this one. Change the grade level, topic, number of questions, or difficulty - then generate a fresh version.
- • Change grade level (Grade 6 → Grade 7)
- • Swap topics (Harry Potter → Macbeth)
- • Add more questions (10 → 15)
- • Adjust difficulty
Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet