3.19 To calculate by using s.i.(systéme internationale) units

Mathematics

Measurement and time

Content

Educator section

Memorandum

1.

1.1 643 km ÷ 50 = 12,86 km

1.2 2 575 ℓ ÷ 125 ℓ = 20,6 = 20 fulll drums

1.3 37,5 mℓ × 275 = 10 312,5 mℓ = 10,3125 ℓ

1.4 538 900 ℓ - 98 476 ℓ = 440 424 ℓ = 440,424 kℓ

1.5 900 mℓ + 300 mℓ + 480 mℓ + 1 140 mℓ

1.6 = 2 820 mℓ = 2,820 ℓ

Leaner section

Content

Activity: to calculate by using s.i.(systéme internationale) units [lo 4.5]

1. Calculate the following without the use of a pocket calculator. Work neatly and show all operations. Do not forget to indicate the unit.

1.1 1,247 ℓ × 9,4 =

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1,2 836,50 ℓ ÷ 50 =

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1.3 2,143 mℓ × 50 =

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1.4 1 236,90 kℓ ÷ 0,3 =

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1.5 2,569 m × 40 = .....................

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1.6 36,90 kℓ ÷ 0,3 =

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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 learner solves problems involving selecting, calculating with and converting between appropriate S.I. units listed above, integrating with appropriate Technology and Natural Sciences contexts.