← Mathematics / 3 Measurements
3.7 Money
Mathematics · Grade 7 · 12 lessons in the design
What this covers
- Buying and selling in Kenyan shillings: cost price and selling price
- Profit and loss in real-life buying and selling
- Percentage profit
- Percentage loss
- Discount from a marked price
- Percentage discount
- Commission and percentage commission
- Interpreting household and shop bills
- Preparing bills for goods and services
- Postal charges: letters, registered mail and parcels
- Mobile money services: M-Pesa, Airtel Money and T-Kash
- Working out mobile money transactions and charges
What you will be able to do
- work out profit and loss in real-life situations
- calculate the percentage profit and loss in different situations
- calculate discount and percentage discount of different goods and services
- calculate commission and percentage commission in real-life situations
- interpret bills at home
- prepare bills in real-life situations
- work out postal charges in real-life situations
- identify mobile money services for different transactions
- work out mobile money transactions in real-life situations
- use IT devices or other resources to learn more about money transactions
- recognise the use of money in day-to-day activities
Key questions
“Why do we use money in daily activities?”
“What considerations would we make when buying or selling?”
“What is involved in mobile money transactions?”
Lessons
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Buying and selling in Kenyan shillings
40 min · 1 practice tasks · quizUse Kenyan shillings and cents, name cost price and selling price, and say why money is used in daily trade.
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Profit and loss
40 min · 1 practice tasks · quizWork out profit when selling price is above cost price, and loss when it is below, using Kenyan shop stories.
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Percentage profit
40 min · 1 practice tasks · quizCalculate percentage profit on the cost price, and find selling price when the percent is given.
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Percentage loss
40 min · 1 practice tasks · quizCalculate percentage loss on the cost price and find the selling price after a given percentage loss.
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Discount
40 min · 1 practice tasks · quizFind the discount as marked price minus selling price, and the amount paid after a given discount.
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Percentage discount
40 min · 1 practice tasks · quizCalculate percentage discount on the marked price and the till price after a given percent off.
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Commission and percentage commission
40 min · 1 practice tasks · quizCalculate an agent’s commission as a percentage of sales, and find the rate when commission and sales are known.
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Interpreting bills
40 min · 1 practice tasks · quizRead the parts of a household or shop bill, find units used from meter readings, and check the total in Kenyan shillings.
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Preparing bills
40 min · 1 practice tasks · quizPrepare a simple kiosk or canteen bill with quantity times unit price, a total, and change from cash tendered.
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Postal charges
40 min · 1 practice tasks · quizWork out classroom-model Posta Kenya charges for ordinary letters, registered mail, parcels and EMS from mass and service.
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Mobile money services
40 min · 1 practice tasks · quizIdentify M-Pesa, Airtel Money and T-Kash services: send, receive, withdraw, deposit, Lipa na M-Pesa, pay bill, airtime and savings, with PIN safety.
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Mobile money transactions
40 min · 1 practice tasks · quizWork out send and withdraw totals from a classroom M-Pesa tariff, including what the receiver gets and what the wallet loses.