Grade 9 Computer Science Worksheet: Decimals

Decimals Assessment Prep

Grade 9 Computer Science Decimals Assessment Prep Advanced 5 Questions 14 Views

Classroom Worksheet

Grade 9 Computer Science Worksheet: Decimals

Decimals Assessment Prep

Name____________________________

Date________________

Score______ / 5

Grade: Grade 9

Subject: Computer Science

Topic: Decimals

Time: 20 Minutes

Difficulty: Advanced

Questions: 5

Instructions:
Answer all 5 questions carefully. Show your work where needed. Use decimal place value, rounding, and binary-to-decimal thinking when appropriate. Write neatly and check your answers before submitting.

Skills Practiced:

Decimals
Computer Science
Critical Thinking
Problem Solving

1Question

Convert the decimal 7.406 into words and identify the place value of the digit 4.

2Question

Round 18.376 to the nearest hundredth.

3Question

A computer sensor records temperatures of 12.5°C, 12.48°C, and 12.503°C. Which reading is greatest, and by how much does it exceed the smallest reading?

4Question

A programmer stores a value of 3.75 in a program. Write 3.75 as a fraction in simplest form, then explain why decimal values are useful in computer science.

5Question

A game score is calculated using the formula: score = 2.5m + 1.75b - 0.4p, where m = 6, b = 8, and p = 5. Compute the score.

Answer Key

#	Answer
1	Seven and four hundred six thousandths; the digit 4 is in the tenths place.
2	18.38
3	12.503°C is greatest. It exceeds 12.48°C by 0.023°C.
4	3.75 = 15/4. Decimal values are useful because they represent parts of whole numbers precisely for measurements, calculations, and data values.
5	score = 2.5(6) + 1.75(8) - 0.4(5) = 15 + 14 - 2 = 27