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KhanAcademyExercises

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New exercises from Khan Academy 2020-08-11T16:35:27.000000
Aggiornato: 1 ora 17 min fa

Adding up to four 2-digit numbers

Mar, 2020-08-11 16:35
Practice solving problems that include four 2-digit numbers.

Identify the value of US coins and dollars

Mar, 2020-08-11 16:35
Practice identifying the value of US coins and dollars.

Write numbers in word and expanded form

Mar, 2020-08-11 16:34
Write numbers in word and expanded form within 1000.

Measuring an algorithm's efficiency

Mar, 2020-08-11 12:56
Practice measuring the efficiency of an algorithm (both by counting steps and tracking time), in this set of free practice questions designed for AP Computer Science Principles students.

Factor quadratics by grouping

Mar, 2020-08-11 11:51
Factor quadratics of the form ax²+bx+c.

Composition of mixtures

Mar, 2020-08-11 01:33
Practice determining the composition of mixtures in this set of free questions designed for AP Chemistry students.

Atomic structure and electron configuration

Mar, 2020-08-11 01:00
Check your understanding of atomic structure and electron configuration in this set of free practice questions designed for AP Chemistry students.

Multiply monomials (advanced)

Lun, 2020-08-10 23:51
More challenging multiplying monomial problems like find the area or find missing values to make an equation true.

Calculating opportunity costs from a production possibilities curve (PPC)

Ven, 2020-08-07 18:08
In this exercise, practice using data from a production possibilities curve to calculate opportunity costs.

Trigonometric identities challenge problems

Ven, 2020-08-07 05:32
Let's practice all the identities we've discussed so far.

Find the total covalent bonds in a carbon compound

Gio, 2020-08-06 17:49
Let's practice to find the total number of covalent bonds present by counting the number of bonds present between all the atoms in a compound.

Area between two polar curves

Mer, 2020-08-05 20:51
Find expressions that represent areas between two polar curves.

Features of quadratic functions

Mar, 2020-08-04 13:35
Find the zeroes ("roots") of quadratic functions and the vertex of their parabolas. Functions are given in standard, vertex, and factored form.

Area bounded by polar curves

Lun, 2020-08-03 22:31
Find expressions that represent areas bounded by polar curves.

Tangents to polar curves

Lun, 2020-08-03 22:31
Practice tangent lines of functions defined with polar coordinates.

Funny Business: reading drama; A Midsummer Night's Dream 8

Lun, 2020-08-03 20:58
8th grade reading comprehension practice on A Midsummer Night's Dream

Prove parallelogram properties

Lun, 2020-08-03 20:00
Use transformations, triangle congruency criteria, and line and angle relationship to prove parallelogram properties.

The Apocalypyse: reading informational text; The Apocalypse in Fiction and Film 9

Lun, 2020-08-03 18:04
9th grade reading comprehension practice using an informational text on the apocalypse in fiction and film

Adding up to four 2-digit numbers word problems

Lun, 2020-08-03 17:38
Practice solving word problems involving four 2-digit numbers.

Length word problem (US customary)

Lun, 2020-08-03 16:58
Add and subtract lengths to solve word problems. All problems are in inches and feet. 

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