Mathematics
Measurement and time
Area
Educator section
Memorandum
1.1 2 915,95 kg
1.2 1,998 kg
1.3 0,750 kg
1.4 26,082 kg
2.1 3,098 kg
2.2 4,104 kg
2.3 1,219 kg
2.4 18,797 kg
3.1 48,688 kg
3.2 15 272 kg
3.3 8 722 kg
3.4 238,117 g
3.5 0,320 kg
3.6 127,296 g
Leaner section
Content
Activity: to calculate by selecting appropriate operations for solving particular problems [lo 4.5]
Let's first see how well you are able to add and subtract without the help of a pocket calculator.
1. Reduce the following masses by 50 g:
1.1 2 916 kg = ________________________________ kg
1.2 2,048 kg = ________________________________ kg
1.3 0,800 kg = ________________________________ kg
1.4 26,132 kg = _______________________________ kg
2. Increase the following masses by 300 g:
2.1 2,798 kg = ________________________________ kg
2.2 3,804 kg = ________________________________ kg
2.3 0,919 kg = ________________________________ kg
2.4 18,497 kg = _______________________________ kg
3. Complete the calculations without the use of a calculator (first make units the same):
3.1 38,942 kg + 9,746 kg =
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3.2 6 913 kg + 8,359 t =
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3.3 9 t - 278 kg =
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3.4 18,517 g + 219,6 g =
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3.5 8 kg ÷ 25 =
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3.6 15,912 g × 8 =
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Assessment
Learning Outcome 4: The learner will be able to use appropriate measuring units, instruments and formulae in a variety of contexts.
Assessment Standard 4.5: We know this when the solves problems involving selecting, calculating with and converting between appropriate S.I. units listed above, integrating with appropriate Technology and Natural Sciences contexts.