0.3 To solve problems in context

Mathematics

Subtraction

Educator section

Memorandum

1.1 56 702

1.2 R226 732

1.3 771 448

1.4 5 568 286

Leaner section

Content

Activity: to solve problems in context [lo 1.6.1]

To use a range of techniques to perform written calculations [lo 1.10.1]

1. Divide into groups of three. First ask your educator for the necessary paper and then calculate the answers to the following problems WITHOUT the help of your pocket calculator:

1.1 A soccer game attracted 89 643 spectators. If there were 32 941 women, how many men were there?

1.2 Mr Muruvan would like to buy a house costing R980 000. He only has R753 268. How much must he borrow from his bank to be able to buy the house?

1.3 The sum of two numbers is 1 025 317. If the one number is 253 869, what is the other number?

1.4 In a certain country with a population of 6 564 321, a survey found that 996 035 people had no voting rights. How many people could vote when that country held an election?

2. Check your answers with your pocket calculator.

3. Explain to the rest of the class how your group calculated the answers.

4. Compare your methods. How do they differ?

Group assessment

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).