CK-12 Foundation
Ck 12: Elem Math: Two Step Addition Sums to 100 Word Problems
[Free Registration/Login may be required to access all resource tools.] The video shows how to break down a word problem into two steps to solve an addition problem with numbers up to 100. The video is followed by a series of practice...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 4
[Free Registration/Login may be required to access all resource tools.] The video explains the connection from multiplication to repeated addition with multiplying by four. The video is followed by a series of practice questions to...
CK-12 Foundation
Ck 12: Elem Math: Comparing the Values of Numbers in a Table
[Free Registration/Login may be required to access all resource tools.] The video shows how to compare four different 3-digit numbers to answer a series of questions of the number being the largest or the smallest. The video is followed...