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To determine output values for given input values

Module by: Siyavula Uploaders. E-mail the author

MATHEMATICS

Multiplication

EDUCATOR SECTION

Memorandum

Table 1
1.1 7       700
  32  
  236  
  986  
× 10 2
  3 200
   
  98 600
  4614       461 400
Table 2
1.2 6       6 000
  27  
  53  
  719  
× 10 3
  27 000
  53 000
  719 000
  894       894 000
Table 3
1.3 4  
  19  
  236  
10 3
  400 000
  1 900 000
  23 600 000

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:

Figure 1
Figure 1 (graphics1.jpg)
1.1

Figure 2
Figure 2 (graphics2.jpg)
1.2

Figure 3
Figure 3 (graphics3.jpg)
1.3

2. Work together with a friend and calculate:

2.1 (2 x 104) + (9 x 103) = ____________ + ____________ = ____________

2.2 (16 x 104) + (12 x 102) = ___________ + ____________ = ____________

2.3 (7 x 105) + (4 x 106) = ____________ + ____________ = ____________

2.4 (8 x 106) + (16 x 104) = ____________ + ____________ = ____________

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.

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