Teaspoons to milliliters

HESI A2
Basic Math Skills
Multiple choice
Difficulty 2 of 5

Question

A dye chart calls for 9 teaspoons of liquid pigment. Using 5 mL per teaspoon, how many mL should be measured?

1.8✗ Incorrect

Incorrect. This answer divides by the conversion factor instead of multiplying.
4.5✗ Incorrect

Incorrect. This answer misplaces the decimal point (10 times too little).
45✓ Correct

Correct. Multiply by the conversion factor: 9 × 5 = 45.
450✗ Incorrect

Incorrect. This answer misplaces the decimal point (10 times too much).

Answer

C. 45

Rationale

The given amount is expressed in the larger unit. Apply the stated factor once for each of those units.

Worked solution: Multiply by the conversion factor: 9 × 5 = 45.

RememberMultiply when converting the larger unit into the stated smaller unit.

Sources

Sources marked “Adapted from” are licensed under CC BY 4.0. We changed the material: its facts are rewritten into an original question, answer options and rationale. The original authors and publishers do not endorse SwipeExam.

Adapted from Open RN Nursing Skills, 2nd edition: Chapter 5 Math Calculations Open RN (Chippewa Valley Technical College) · License: CC BY 4.0 · Retrieved November 2, 2026 · EQUIVALENCIES › Household Equivalencies · 2nd edition, 2023

Last verified: November 5, 2026 2 independent automated checks Question hesi-bms-00077, version 1

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