2.4 To determine output values for given input values

Mathematics

Multiplication

Educator section

Memorandum

2. 2.1 20 000 + 9 000 = 29 000

2.2 160 000 + 1 200 = 158 800

2.3 700 000 = 4 000 000 = 4 700 000

2.4 8 000 000 + 160 000 = 7 840 000

Leaner section

Content

Activity: to determine output values for given input values [lo 2.3.2]

1. Let us see whether you are able to apply your knowledge of powers of 10 correctly. Complete the following flow diagrams:

2. Work together with a friend and calculate:

2.1 (2 x 10 ⁴ ) + (9 x 10 ³ ) = ____________ + ____________ = ____________

2.2 (16 x 10 ⁴ ) + (12 x 10 ² ) = ___________ + ____________ = ____________

2.3 (7 x 10 ⁵ ) + (4 x 10 ⁶ ) = ____________ + ____________ = ____________

2.4 (8 x 10 ⁶ ) + (16 x 10 ⁴ ) = ____________ + ____________ = ____________

3. Check your answers with a calculator.

CAN YOU STILL REMEMBER?

Explain to a friend how you can programme a calculator to multiply in powers of 10.

Assessment

Learning Outcome 2: The learner will be able to recognise, describe and represent patterns and relationships, as well as to solve problems using algebraic language and skills.

Assessment Standard 2.3: We know this when the learner determines output values for given input values, or input values for given output values, using:

2.3.2: flow diagrams.