New exercises from Khan Academy 2021-05-04T22:50:46.000000
Atualizado: 1 hora 10 minutos atrás
Practice calculations involving enthalpies of reaction in this set of free questions designed for AP Chemistry students.
Check your understanding of heat capacity and calorimetry in this set of free practice questions designed for AP Chemistry students.
Practice rounding to the nearest ten and rounding to the nearest hundred.
Give your brain a workout with these challenge problems on rounding.
Figure out the coordinates of a point between two other points that gives a certain ratio. For example, find a point B so that it is two thirds of the way between point A and C.
Practice comparing fractions with the help of visuals aides.
Given two triangles with their side measures, determine whether the triangles are similar or not.
Practice what you know about exchange rates in this exercise.
Practice rounding to the nearest ten and rounding to the nearest hundred on the number line.
Practice applying the conservation of energy law to numerically solve for an unknown.
Locate 1 on a number line labeled with 0 and a unit fraction.
Identify the fraction of a whole that is shaded. Fractions are less than 1.
Multiply 7 times a number less than or equal to 10.
Practice decomposing the factors in multiplication problems and see how it affects the product.
Multiply 6 times a number less than or equal to 10.
Multiply 3 times a number less than or equal to 10.
Practice determining if a statistic is an unbiased estimator of some population parameter.
Practice using the central limit theorem to describe the shape of the sampling distribution of a sample mean.