1.34 To solve problems in context

Mathematics

Subtraction

Educator section

Memorandum

Leaner section

Content

Activity: to solve problems in context [lo 1.6.1]

To use a range of techniques to perform calculations [lo 1.8.2]

Being observant, I’m sure that you will have seen that we deal with a lot of ‘subtractions’ in our daily lives! Consider the following carefully:

Here we have a list of things that you may also have at home.

1. Find two prices for each item in the local newspaper. Write down the highest price. Then calculate the difference between the two prices. (You may use your pocket calculator).

2. How much will you save if you pay price 2 instead of price 1 for all the items?

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3. Ask your partner to check your answers.

Assessment

Learning Outcome 1: The learner will be able to recognise, describe and represent numbers and their relationships, and to count, estimate, calculate and check with competence and confidence in solving problems.

Assessment Standard 1.6: We know this when the learner solves problems in context including contexts that may be used to build awareness of other Learning Areas, as well as human rights, social, economic and environmental issues such as:

1.6.1: financial (including buying and selling, profit and loss, simple budgets, reading and interpreting accounts, and discount);

Assessment Standard 1.8: We know this when the learner estimates and calculates by selecting and using operations appropriate to solving problems that involve:

1.8.1: rounding off to the nearest 5, 10, 100 or 1 000