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Course 302 · Money course 48

Read and Check a Utility Bill

Check a fictional electric bill, find what does not add up and prepare one clear billing question in a short session.

Before you start

Use paper or a local note and a calculator. All records and prices are supplied.

See everything you’ll need

Free download · Original practice data · No external account required. Download the starter pack

What you’ll leave with

A checked fictional utility bill, one changed-input calculation and an unsent inquiry that separates a reconciled amount from an unresolved charge question.

Start course Start without an account. Sign in to save lesson progress across devices.

Your project

Start with the practice files. Build your project one lesson at a time.

Practice files are free without an account. Sign in to save your project record in My Proof: a description, checklist, and optional work link. Keep the original files in your own app or notebook; saving a project record does not upload them.

  1. Get your materialsDownload practice filesSupplied practice cases, a blank working record, complete lesson instructions, and annotated worked examples.
  2. Make your projectView the project checklist Work in your own notebook, document, or software. Use the supplied practice examples when you prefer.
  3. Keep a private recordSave a project record Sign in to save a description and checklist, then return to update them.
Course handbook

Know the route before you begin.

Here’s what you’ll need and what you’ll make. You can return to this guide during any lesson.

Who this is for

Learners ages 14+ preparing to manage household bills. Younger learners use a fictional future household; no account ownership is needed.

Prepare before lesson one
  • Use paper or a local note and a calculator. All records and prices are supplied.
  • Be comfortable subtracting whole numbers and multiplying decimals; retain the units.
  • No prerequisite course is required. A personal budget, utility account, real bill or provider conversation is not needed.
Your final project

Finish with proof you can use.

A one-page fictional bill-check record with the period and usage, charge/balance calculation, changed case and an unsent inquiry plus reply review.

Save a project record in My Proof
See project checklist and review criteria

Keep your working files in your own notebook or software. Save a private description, checklist, and work link in My Proof.

What to include

  • A period and meter card distinguishing cumulative readings from period kWh and actual from estimated evidence.
  • A calculation table for current charges, prior balance, applied payment and the difference from the printed amount.
  • A changed-input result and an unsent factual inquiry, followed by a review of the supplied fictional reply.

Review and revise

Use these criteria to check your work and choose what to improve.

  • Usage is derived from the matched readings with the correct unit and stated period.
  • Each charge, old balance and payment is counted once; intermediate totals and the printed-bill difference are visible.
  • The changed calculation follows the supplied change and preserves the original case.
  • The question uses a verified-channel plan and minimum facts; a mathematically explained charge is not described as legally valid or actually paid.
Three ideas to help you along the way
Three useful ideas

The rules behind the steps.

01

Match the boundary

Use the same service, meter, unit and period before comparing readings or bills.

02

Count every entry once

Current usage charges and a previous unpaid balance are different; an applied payment reduces that previous balance once.

03

Ask for the missing evidence

A difference needs a specific explanation. A supplied reply may reconcile the math while leaving the authority for a charge unresolved.

What do these words mean?
Key words

Key terms worth knowing.

kWh
Kilowatt-hour: a quantity of energy used over time, not an instantaneous power rating.
Cumulative reading
A meter record that accumulates use; subtract matched readings to find period use.
Estimated reading
A reading marked as estimated rather than an actual reading; its label changes the evidence status, not the subtraction rule.
Current charges
Charges assigned to the current bill period, kept separate from an earlier balance.
Reconciliation
A traceable explanation of how source entries lead to a total and why two records differ.
Your route

3 lessons.
One useful project.

Work in order the first time. Each lesson makes something the next lesson can use.

  1. 1
    Up next

    Read the period and meter record

    Calculate period energy from matched meter readings and keep the reading type visible.

  2. 2
    10 min

    Reconcile usage, charges and the balance

    Rebuild the fictional amount due from period use, stated charges and prior account movements.

  3. 3
    10 min

    Ask about a difference and check the reply

    Draft a narrow factual billing question and determine what a supplied reply explains.

Use the tools

Tools to help you practice.

See all tools
ZIP · practice files

Read and Check a Utility Bill practice pack

Supplied practice cases, a blank working record, complete lesson instructions, and annotated worked examples.

Text worksheet

Your course project worksheet

A downloadable text worksheet with each lesson’s working output, space for your answers, and the shared final-project checklist. Save your own copy.

Source transparency

Sources and further study.

Explore the references behind the lessons and take your learning further. Source notes explain access and reuse.

Maryland Public Service Commission — Consumer FAQs
Source & access notes · checked 2026-10-02

Billing-dispute sections discuss meter-reading history, copies of bills and contacting the provider before regulator escalation. Maryland-specific rights are not generalized in this course. Case rates and arithmetic are original.

Access: Readable primary regulator page inspected on 2026-10-02. No account, complaint portal or meter test operated.

Reuse: Original fictional cases, tables, calculations and questions; no source exercise or provider prices copied.

Ready when you are

Start with the first useful move.

You’ll always know what to do, what to make, and where to go next.

Start lesson one