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MedMathMindset Provider Math Atlas · CNA

CNA math, one domain at a time.

This free guide turns the current MedMathMindset CNA math blueprint into a practical map: every included domain, its MedMathMindset instructional weight, one worked example, and a quick reasonableness check.

Blueprint snapshot

9 domains · 100% total instructional weight

Domains are shown from highest to lowest MedMathMindset blueprint weight. The weights are MedMathMindset instructional blueprint weights used to organize provider-relevant quantitative training; they should not be interpreted as an official credentialing-body exam percentage unless an official source explicitly states that.

Higher weight = more emphasis in MedMathMindsetEvery domain gets at least one worked example
Use it three ways

Teach · review · print

Use the examples as a quick class reference, a learner review sheet, or a printable PDF. For repeated practice and performance signals, continue into the provider-specific Performance Challenge or enrolled MedMathMindset pathway.

Domain 1 of 9

Whole Number Operations

Whole Number Operations is included because it matches expected quantitative work for this provider level. CNA scope emphasizes intake/output, measurements, safety observation, and basic clinical support—not medication administration or IV therapy.
18%MMM blueprint weight
Example

A supply area starts with 24 counted items, adds 18, then uses 11. How many remain?

Setup / reasoning

24 + 18 − 11 = 31.

Answer

31 items

Quick check

Reconcile the starting quantity, additions, and use; the ending count should fit the story.

Domain 2 of 9

Unit Conversions

Unit Conversions is included because it matches expected quantitative work for this provider level. CNA scope emphasizes intake/output, measurements, safety observation, and basic clinical support—not medication administration or IV therapy.
14%MMM blueprint weight
Example

Convert 750 mg to g.

Setup / reasoning

Use the 1000:1 metric relationship; the result is 0.75 g.

Answer

0.75 g

Quick check

Confirm the direction of the conversion and that the final unit is exactly the requested unit.

Domain 3 of 9

CNA/CMA Clinical Support Math

CNA/CMA Clinical Support Math is included because it matches expected quantitative work for this provider level. CNA scope emphasizes intake/output, measurements, safety observation, and basic clinical support—not medication administration or IV therapy.
12%MMM blueprint weight
Example

While checking a patient's pulse, you count 18 heartbeats in 15 seconds. What is the pulse rate in beats per minute?

Setup / reasoning

Multiply by 4 to scale the heartbeat count to one minute: 72 beats/min.

Answer

72 beats/min

Quick check

Scale the observed count to a full minute using the correct time multiplier.

Domain 4 of 9

Fractions / Decimals

Fractions / Decimals is included because it matches expected quantitative work for this provider level. CNA scope emphasizes intake/output, measurements, safety observation, and basic clinical support—not medication administration or IV therapy.
12%MMM blueprint weight
Example

Write 3/4 as a decimal.

Setup / reasoning

3 ÷ 4 = 0.75.

Answer

0.75

Quick check

For a proper fraction, the decimal should fall between 0 and 1.

Domain 5 of 9

Intake / Output

Intake / Output is included because it matches expected quantitative work for this provider level. CNA scope emphasizes intake/output, measurements, safety observation, and basic clinical support—not medication administration or IV therapy.
12%MMM blueprint weight
Example

Intake is 240 mL plus 120 mL. Output is 150 mL. What is the net fluid balance?

Setup / reasoning

Total intake is 360 mL; subtract 150 mL to get 210 mL.

Answer

210 mL

Quick check

Add all intake first, then subtract output; retain the sign because positive and negative balances mean different things.

Domain 6 of 9

Percentages

Percentages is included because it matches expected quantitative work for this provider level. CNA scope emphasizes intake/output, measurements, safety observation, and basic clinical support—not medication administration or IV therapy.
12%MMM blueprint weight
Example

What is 25% of 80?

Setup / reasoning

25% × 80 = 20.

Answer

20

Quick check

The result should be the stated fraction of the whole; compare its magnitude with 0% and 100%.

Domain 7 of 9

Provider Operations Math

Provider Operations Math is included because it matches expected quantitative work for this provider level. CNA scope emphasizes intake/output, measurements, safety observation, and basic clinical support—not medication administration or IV therapy.
10%MMM blueprint weight
Example

A device has 600 usable units and consumes 10 units each minute. Ignoring reserve, how many minutes will it run?

Setup / reasoning

600 ÷ 10 = 60 minutes.

Answer

60 min

Quick check

A quantity divided by a consumption rate should produce a time or capacity that fits the operating context.

Domain 8 of 9

Clinical Index / Score Interpretation

Clinical Index / Score Interpretation is included because it matches expected quantitative work for this provider level. CNA scope emphasizes intake/output, measurements, safety observation, and basic clinical support—not medication administration or IV therapy.
5%MMM blueprint weight
Example

24 events occur during 6 hours. What is the event index per hour?

Setup / reasoning

24 ÷ 6 = 4 events/hr.

Answer

4 events/hr

Quick check

An index is a rate: confirm both the numerator and the time/exposure denominator.

Domain 9 of 9

Nutrition / Metabolism Math

Nutrition / Metabolism Math is included because it matches expected quantitative work for this provider level. CNA scope emphasizes intake/output, measurements, safety observation, and basic clinical support—not medication administration or IV therapy.
5%MMM blueprint weight
Example

A nutrient provides about 4 kcal per gram. How many kcal are provided by 25 g?

Setup / reasoning

25 × 4 = 100 kcal.

Answer

100 kcal

Quick check

Energy should scale directly with grams when kcal per gram is fixed.

Important scope note

Educational examples, not patient-specific clinical direction

These examples are designed to make quantitative relationships visible. They do not replace local protocols, medication references, device instructions, scope-of-practice requirements, official credentialing test plans, or clinical judgment. MedMathMindset uses the provider blueprint to organize math practice—not to redefine professional scope.

MedMathMindset.com · CNA Math Atlas · Printable provider math reference