Math Worksheets and Study Guides Eighth Grade. Ratios, proportions and percents

The resources above correspond to the standards listed below:

Maryland Standards

MD.2.0. Knowledge Geometry: Students will apply the properties of one-, two-, or three-dimensional geometric figures to describe, reason, or solve problems about shape, size, position, or motion of objects.
2.D.1. Congruence and Similarity: Apply the properties of similar polygons.
2.D.1.a. Determine similar parts of polygons (Assessment limit: Use the length of corresponding sides or the measure of corresponding angles and rational numbers with no more than 2 decimal places (0 - 1000)).
MD.3.0. Knowledge of Measurement: Students will identify attributes, units, or systems of measurements or apply a variety of techniques, formulas, tools, or technology for determining measurements.
3.C.2. Applications in Measurement: Analyze measurement relationships.
3.C.2.a. Use proportional reasoning to solve measurement problems (Assessment limit: Use proportions, scale drawings with scales as whole numbers, or rates using whole numbers or decimals (0 - 1000)).
MD.5.0. Knowledge of Probability: Students will use experimental methods or theoretical reasoning to determine probabilities to make predictions or solve problems about events whose outcomes involve random variation.
5.B.1. Theoretical Probability: Determine the probability of an event comprised of no more than 2 independent events.
5.B.1.a. Express the probability of an event as a fraction, a decimal, or a percent (Assessment limit: Use a sample space of 36 to 60 outcomes).
5.B.2. Theoretical Probability Determine the probability of a second event that is dependent on a first event of equally likely outcomes.
5.B.2.a. Express the probability as a fraction, a decimal, or a percent (Assessment limit: Use a sample space of no more than 60 outcomes).
5.C.1. Experimental Probability: Analyze the results of a survey or simulation.
5.C.1.a. Make predictions and express the probability of the results as a fraction, a decimal with no more than 2 decimal places, or a percent (Assessment limit: Use 20 to 500 results).
MD.6.0. Knowledge of Number Relationships and Computation/Arithmetic: Students will describe, represent, or apply numbers or their relationships or will estimate or compute using mental strategies, paper/pencil, or technology.
6.C.3. Number Computation: Analyze ratios, proportions, and percents.
6.C.3.a. Determine unit rates (Assessment limit: Use positive rational numbers (0 - 100)).
6.C.3.c. Solve problems using proportional reasoning (Assessment limit: Use positive rational numbers (0 - 1000)).

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