Perplex
Dashboard
Topics
Exponents & LogarithmsRounding & ErrorSequences & SeriesFinancial Mathematics
Cartesian plane & linesFunction TheoryModelling
2D & 3D GeometryVoronoi Diagrams
ProbabilityDescriptive StatisticsBivariate StatisticsDistributions & Random VariablesInference & Hypotheses
DifferentiationIntegration
Review VideosFormula BookletMy Progress
BlogLanding Page
Sign UpLogin
Perplex
Perplex
Dashboard
Topics
Exponents & LogarithmsRounding & ErrorSequences & SeriesFinancial Mathematics
Cartesian plane & linesFunction TheoryModelling
2D & 3D GeometryVoronoi Diagrams
ProbabilityDescriptive StatisticsBivariate StatisticsDistributions & Random VariablesInference & Hypotheses
DifferentiationIntegration
Review VideosFormula BookletMy Progress
BlogLanding Page
Sign UpLogin
Perplex

Rounding & Error (Lesson 1/3)

Rounding Numbers

1 / 9

Discussion

Martha is at the doctor's office for her annual checkup. The diagram below depicts her standing next to a ruler so the doctor can measure her height. Try moving the bottom leveler to measure the very top of Martha's head.

(a)

Can you find Martha's exact height?

Solution:

Martha's exact height appears to be about ​170.6cm.

1 free

Rounding & Error (Lesson 1/3)

Rounding Numbers

1 / 9

Discussion

Martha is at the doctor's office for her annual checkup. The diagram below depicts her standing next to a ruler so the doctor can measure her height. Try moving the bottom leveler to measure the very top of Martha's head.

(a)

Can you find Martha's exact height?

Solution:

Martha's exact height appears to be about ​170.6cm.

1 free