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KhanAcademyExercises

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New exercises from Khan Academy 2021-05-04T22:50:46.000000
Mis à jour : il y a 1 heure 43 min

Finding percents

mar, 2021-05-04 22:50
Find a percent of a quantity as a rate per 100; solve problems involving finding the whole, given a part and the percent.

Relate fractions, decimals, and percents

mar, 2021-05-04 22:39
Use fraction models and hundredths grids to identify equivalent fractions, decimals, and percents.

Distributive property with variables (negative numbers)

mar, 2021-05-04 21:49
Factor and expand expressions like -3x-9 by applying the distributive property.  Expressions include variables and negative numbers.

Two-step equations

lun, 2021-05-03 22:55
Practice solving equations that take two steps to solve. For example, solve  -16 = x/4 + 2.

Comparing data displays

lun, 2021-05-03 17:59
Practice interpreting and comparing dot plots, histograms, and box plots.

Add and subtract on the number line word problems

lun, 2021-05-03 17:56
Practice solving addition or subtraction word problems using a number line. All items include 4 two-digit numbers.

Visual parametric surfaces

lun, 2021-05-03 05:46
Given a graph of a parametric surface, what equation created it? Or, given an equation, what is its graph?

Using slope and intercepts in context

dim, 2021-05-02 21:38
Practice identifying when slope or intercepts are useful for answering questions about a linear relationship.

Create picture graphs (picture more than 1)

dim, 2021-05-02 21:38
Create and interpret picture graphs.  Each picture on the graph represents a number greater than 1.

Graph sinusoidal functions: phase shift

dim, 2021-05-02 21:38
Given the formula of a sinusoidal function of the form a*f(bx+c)+d, draw its graph.

Compare fractions with the same numerator

dim, 2021-05-02 21:38
Compare two fractions that have the same numerator using greater and less than symbols.

Compare fractions with the same denominator

dim, 2021-05-02 21:38
Compare two fractions that have the same denominator using greater and less than symbols.

Convert units multi-step word problems (metric)

dim, 2021-05-02 21:38
Solve word problems that involve converting between metric measures of distance, volume, and mass, as well as measures of time.

Relate ratios in right triangles

dim, 2021-05-02 21:38
We can describe the trigonometric ratios from a single right triangle in terms of either acute angle. The relationships hold for all complementary angle pairs.

Compare volumes with unit cubes

dim, 2021-05-02 18:28
Recognize volume as an attribute of solid figures and understand concepts of volume measurement.

Multiplying fractions with visuals

dim, 2021-05-02 18:28
Use area models and tape diagrams to multiply a fraction times a fraction.

Multiply fractions word problems

dim, 2021-05-02 18:27
Solve fraction and mixed number multiplication word problems.

Read bar graphs

dim, 2021-05-02 18:27
Interpret bar graphs to answer questions about a context.

Collinearity of three points

ven, 2021-04-30 03:13
Let's try to associate the condition of collinearity with a mathematical result and hence use it to find the unknowns. 

Convert units word problems (metrics)

jeu, 2021-04-29 22:06
Solve 1-step word problems involving metric units of measure and time.

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