7.NS.A.1.A Videos - Free Educational Videos for Students in K - 12


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7.NS.A.1b / 7.NS.A.1c - Addition and Subtraction of Rational Numbers (Part 1 of 2)


By MathwithMrAlmeida

Watch Mr. Almeida fully explain how to add and subtract rational numbers using vectors and the concept of a number line.

      Division of Rational Numbers


      By Khan Academy

      This video walks through the division of 4-5 rational numbers and includes a word problem.

          Comparing rational numbers


          By Khan Academy

          U09_L1_T3_we4 Comparing Rational Numbers

              Passive Sentences (Part 1)


              By Smrt English

              Mark demonstrates how to make a sentence in the passive voice using 'be + past participle'.

                  The Active & Passive Voices #1


                  By Smrt English

                  This lesson explains the reasons and ways to use the active and passive voices. Passive sentences shift the focus from the subject to the object. Passive sentences are used when the agent (doer of the action) is not important or unknown or the agent is clear.

                      Passive Sentences (Part 2)


                      By Smrt English

                      Mark explains the difference between the active voice and the passive voice. He provides reasons why people use the passive voice.

                          The Active & Passive Voices #2


                          By Smrt English

                          This lesson provides more detailed information about the active and passive voices. Passive sentences are used when it is unnecessary to say "by" an agent and is used as a past participle adjective. Active sentences can be used when speaking in casual situations when the subject is "you" or "we".

                              Dividing mixed numbers


                              By Khan Academy

                              Dividing Mixed Numbers

                                  Multiplying and dividing negative numbers


                                  By Khan Academy

                                  Find the product of numbers with different signs.

                                      Multiplying and dividing negative numbers


                                      By Khan Academy

                                      Use the distributive property to understand the products of negative numbers.

                                          Multiplying and dividing negative numbers


                                          By Khan Academy

                                          Learn some rules of thumb for multiplying positive and negative numbers.

                                              Multiplying and dividing negative numbers


                                              By Khan Academy

                                              Discover the basics of dividing with negative numbers.������������

                                                  Multiplying and dividing negative numbers


                                                  By Khan Academy

                                                  Use the repeated addition model of multiplication to give an understanding of multiplying negative numbers.

                                                      Classifying numbers


                                                      By Khan Academy

                                                      Learn how to classify numbers as whole numbers, integers, rational numbers, and irrational numbers.

                                                          Subtracting negative numbers intro


                                                          By Khan Academy

                                                          Find out why subtracting a negative number is the same as adding the absolute value of that number.

                                                              Subtracting negative numbers intro


                                                              By Khan Academy

                                                              Use a number line to add 15 + (-46) + 29

                                                                  Adding negative numbers intro


                                                                  By Khan Academy

                                                                  Use a number line to add -15 + (-46) + (-29)

                                                                      Subtracting negative numbers intro


                                                                      By Khan Academy

                                                                      Learn how to add and subtract negative numbers. The problems solved in this video are 2 - 3 = -1 and -2 - 3 = -5 and -2 + 3 = 1 and 2 - (-3) = 5 and -2 - (-3).

                                                                          CA Algebra I: Number Properties and Absolute Value


                                                                          By Khan Academy

                                                                          1-7 number properties and absolute value equations. All Khan Academy content is available for free at www.khanacademy.org