[Free Registration/Login may be required to access all resource tools.] The video uses the picture and describes how to add two numbers with a sum less than 20. The video is followed by additional practice problems.

[Free Registration/Login may be required to access all resource tools.] The video shows how to find the sum of 3, 1-digit numbers. A picture to model the problem is displayed in the video. Following the video is additional practice...

[Free Registration/Login may be required to access all resource tools.] The video uses pictures to aide in counting back to solve subtraction. The video is followed by additional problems for students to practice the skills discussed in...

[Free Registration/Login may be required to access all resource tools.] The video describes what more than means mathematically by continually counting one more than the number provided in the example. The video is followed by a series...

[Free Registration/Login may be required to access all resource tools.] This video describes how to find the addition problem that does fit for the solution given in the question. The video is followed by a series of practice questions...

[Free Registration/Login may be required to access all resource tools.] The video describes the parts of an addition problem and explains why addition facts are related. The video is followed by a series of practice questions to assess...

[Free Registration/Login may be required to access all resource tools.] The video shows how to count backwards to determine the missing number in an addition problem. The video is followed by practice problems to assess student...

[Free Registration/Login may be required to access all resource tools.] The video uses a model to demonstrate subtraction with two numbers that are less than 10.

[Free Registration/Login may be required to access all resource tools.] The video shows how to find the correct number sentence for a given subtraction description. The video is followed by a series of practice questions to assess...

[Free Registration/Login may be required to access all resource tools.] The video describes the parts of a subtraction problem and explains why subtraction facts are related. The video is followed by a series of practice questions to...

[Free Registration/Login may be required to access all resource tools.] The video describes how to solve word problems where they have to add or subtract 3 or more numbers.

[Free Registration/Login may be required to access all resource tools.] This is a set of practice problems where students are given word problems where they have to add or subtract 3 or more 1-digit numbers.

[Free Registration/Login may be required to access all resource tools.] The video explains two addition problems one with regrouping and the other without regrouping.

[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a two-digit addition word problem. The video is followed by a series of practice questions to assess student comprehension of the...

[Free Registration/Login may be required to access all resource tools.] The video shows how to solve a word problem with addition and subtraction. The video is followed by a series of practice questions to assess student comprehension of...

[Free Registration/Login may be required to access all resource tools.] The video describes how to work backwards using addition and subtraction to solve for a specific value.