Addition and Multiplication Practice

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Taught by TheMathDude
  • Currently 4.0/5 Stars.
6730 views | 2 ratings
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson on addition and multiplication practice, the teacher goes over two problems from the math 60 workbook. The first problem involves adding integers with parentheses, and the teacher clarifies that the parentheses are not necessary. The second problem involves multiplying integers, but because there is a zero present, the answer is simply zero. The teacher also demonstrates how to mentally calculate the multiplication of non-zero integers.

Lesson Description:

Practice problems in adding and multiplying integers.

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Questions answered by this video:
  • How do you add two negative numbers together?
  • How do you add -7 + (-7)?
  • How do you multiply a bunch of numbers together?
  • What does (-5)(12)(8)(0) equal?
  • What happens when you multiply numbers by 0?
  • How can you multiply two 2-digit numbers in your head?
  • How can you multiply 40*12 in your head?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson shows how to add numbers, including adding two negative numbers, as well as multiplying several numbers in a row. In this example, three numbers are multiplied by 0. You will also see how you would have just multiplied the first 3 numbers together.