Chapter 1 Review of Arithmetic for Dosage Calculations

Medical Dosage Calculations, Updated 11e (Giangrasso) Chapter 1 Review of Arithmetic for Dosage Calculations

1) Write the following as a mixed number: 17/4.

1. 4 1/4

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Answer: 1

Explanation: Divide the numerator by the denominator or 17 ÷ 4 = 4 with 1 left over so the answer is 4 with the 1 remainder over 4 or 4 ¼

Learning Outcome: 1.1 Changing improper to mixed form.

2) Write the following as a mixed number: 36/7.

1. 4 6/7

2. 5 1/7

3. 4 1/7

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Answer: 2

Explanation: Divide the numerator by the denominator: 36 ÷ 7 = 5 with a remainder of 1 or 5 1/7

Learning Outcome: 1.1 Changing improper to mixed form.

3) Write the following as a mixed number: 7/2.

1. 4 1/2

2. 5 1/2

3. 3 1/2

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Answer: 3

Explanation: Divide the numerator by the denominator: 7 ÷ 2 = 3 with 1 remaining or 3 1/2

Learning Outcome: 1.1 Changing improper to mixed form.

4) Write the following number as an improper fraction: 8 5/6.

1. 53/6

2. 40/6

3. 53/8

4. 45/6

Answer: 1

Explanation: Multiply the whole number by the denominator, and add the numerator. 8 × 6 = 48 + 5 = 53. Place this number over the denominator for 53/6

Learning Outcome: 1.1 Changing mixed to improper form.

1 .Medical Dosage Calculations A Dimensional Analysis Approach (Updated) 11e Anthony Giangrasso, Dolores Shrimpton, June Olsen (Test Bank All Chapters, 100% Original Verified, A+ Grade) 1 / 4

5) Write the following number as an improper fraction: 5 5/6.

1. 35/6

2. 30/6

3. 25/6

4. 41/6

Answer: 1

Explanation: Multiply the whole number by the denominator and add the numerator: 5 × 6 = 30

+ 5 = 35. Place this number over the denominator: 35/6

Learning Outcome: 1.1 Changing improper to mixed form.

6) Write the following number as an improper fraction: 8 1/3.

1. 11/3

2. 24/3

3. 8/3

4. 25/3

Answer: 4

Explanation: Multiply the whole number by the denominator and add the numerator: 8 × 3 = 24

+ 1 = 25 Place this number over the denominator: 25/3

Learning Outcome: 1.1 Changing improper to mixed form.

7) Write 0.125 as a fraction in lowest terms and as a percentage.

1. 125/100; 1.25%

2. 25/100; 25%

3. 1/6; 12.5%

4. 1/8; 12.5%

Answer: 4

Explanation: Write one hundred twenty-five thousandths as 125/1000, and then reduce the fraction to 1/8. Move the decimal two places to the right yielding 12.5%

Learning Outcome: 1.4 Convert between decimal numbers and fractions.

8) Write 0.2 as a fraction in lowest terms and as a percentage.

1.1/50; 2%

2. 1/5; 20%

3. 2/100; 0.2%

4. 1/500; 0.002%

Answer: 2

Explanation: Write 2 tenths as 2/10 and reduce to 1/5. Move the decimal point 2 places to the right yielding 20%

Learning Outcome: 1.4 Convert between decimal numbers and fractions.

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9) Write 0.49 as a fraction in lowest terms and as a percentage.

1. 49/100; 49%

2. 7/15; 49%

3. 49/100; 4.9%

4. ½; 4.9%

Answer: 1

Explanation: Write 0.49 as 49/100 which cannot be reduced further. Move the decimal point 2 places to the right to yield 49%

Learning Outcome: 1.4 Convert between decimal numbers and fractions.

10) Write 0.75 as a fraction in lowest terms and as a percentage.

1. 75/100; 75%

2. 15/20; 7.5%

3. 15/20; 75%

4. ¾; 75%

Answer: 4

Explanation: Write 0.75 as 75/100 and reduce to ¾. Move the decimal point 2 places to the right to yield 75%

Learning Outcome: 1.4 Convert between decimal numbers and fractions.

11) Write 0.06 as a fraction in lowest terms and as a percentage.

1. 3/50; 60%

2. 6/10; 6%

3. 3/50; 6%

4. 3/5; 6%

Answer: 3

Explanation: Write 0.06 as 6/100 and reduce to 3/50. Move the decimal point 2 places to the right to yield 6%.

Learning Outcome: 1.4 Convert between decimal numbers and fractions.

12) Write 55% as a decimal number and a proper fraction in lowest terms.

1. 5.5; 55/100

2. 0.055; 55/1000

3. 0.55; 11/20

4. 0.0055; 11/200

Answer: 3

Explanation: Move the decimal 2 places to the left or 0.55, place 55 over 100 and reduce to 11/20

Learning Outcome: 1.7 Write percentages as decimal numbers and fractions.

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13) Write 72% as a decimal number and a proper fraction in lowest terms.

1. 7.2; 72/1000

2. 7.2; 72/100

3. 0.72; 36/50

4. 0.72; 18/25

Answer: 4

Explanation: Move the decimal 2 places to the left or 0.72. Place 72 over 100 and reduce to 18/25

Learning Outcome: 1.7 Write percentages as decimal numbers and fractions.

14) Write 0.6% as a decimal number and a proper fraction in lowest terms.

1. 3/50; 0.06

2. 6/100; 0.60

3. 1/17; 0.06

4. 3/500; 0.006

Answer: 4

Explanation: Move the decimal 2 places to the left or 0.006, place 6 over 1000 and reduce to 3/500

Learning Outcome: 1.7 Write percentages as decimal numbers and fractions.

15) Write 4.5% as a decimal number and a proper fraction in lowest terms.

1. 0.45; 45/100

2. 0.045; 9/200

3. 0.0045; 45/10,000

4. 0.045; 45/1,000

Answer: 2

Explanation: Move the decimal 2 places to the left or 0.045, place 45 over 1000 and reduce to 9/200

Learning Outcome: 1.7 Write percentages as decimal numbers and fractions.

16) Write 25% as a decimal number and a proper fraction in lowest terms.

1. 2.5; 1/40

2. 0.025; 5/200

3. 0.25; 1/4

4. 0.25; 25/100

Answer: 3

Explanation: Move the decimal 2 places to the left or 0.25, place 25 over 100 and reduce to 1/4

Learning Outcome: 1.7 Write percentages as decimal numbers and fractions.

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