CK-12 Foundation
Ck 12: Elem Math: Mixed Operations Subtraction and Addition I Word Problems
[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.
CK-12 Foundation
Ck 12: Elem Math: Mixed Operations Subtraction and Addition Ii Word Problems
[Free Registration/Login may be required to access all resource tools.] a The video shows how to work backwards using addition and subtraction to determine the start value of a given situation. The video is followed by a series of...
CK-12 Foundation
Ck 12: Elem Math: Comparing With One Step Addition and Subtraction Word Problems
[Free Registration/Login may be required to access all resource tools.] The video is a one step word problem using subtraction. The video is followed by practice problems to assess student understanding of the concept.
CK-12 Foundation
Ck 12: Elem Math: Mixed Operations Selecting the Correct Sentence
[Free Registration/Login may be required to access all resource tools.] The video shows how to add and subtract three digit numbers to determine which number sentence matches the correct solution. The video is followed by a series of...
CK-12 Foundation
Ck 12: Elem Math: Mixed Operations Selecting the Incorrect Sentence
[Free Registration/Login may be required to access all resource tools.] The video shows how to add and subtract three digit numbers with two operations in a number sentence to determine which number sentence does not match the correct...
CK-12 Foundation
Ck 12: Elem Math: Balancing the Equations Numbers to 1000
[Free Registration/Login may be required to access all resource tools.] The video shows how to use addition and subtraction to keep an equation balanced by working backwards to determine the missing value. The video is followed by...
CK-12 Foundation
Ck 12: Elem Math: Filling in the Missing or Sign Numbers to 1000
[Free Registration/Login may be required to access all resource tools.] The video works through a 3-digit addition problem to determine if the correct operation for the number sentence is addition or subtraction. The video is followed by...
CK-12 Foundation
Ck 12: Elem Math: Adding Two Digit Numbers Without Regrouping
[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a 2-digit addition problem without regrouping. The video is followed by practice problems.
CK-12 Foundation
Ck 12: Elem Math: Adding Three 2 Digit Numbers
[Free Registration/Login may be required to access all resource tools.] The video shows how to add three, two-digit numbers. The video is followed by practice problems covering the topics in the video.
CK-12 Foundation
Ck 12: Elem Math: Selecting the Correct Addition Sentence Sums to 100
[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...
CK-12 Foundation
Ck 12: Elem Math: Selecting the Incorrect Addition Sentence Sums to 100
[Free Registration/Login may be required to access all resource tools.] This video describes how to find the addition problem that does not fit for the solution given in the question. The video is followed by a series of practice...
CK-12 Foundation
Ck 12: Elem Math: Selecting the Incorrect Subtraction Sentence
[Free Registration/Login may be required to access all resource tools.] This video describes how to find the subtraction problem that does not fit for the solution given in the question. The video is followed by a series of practice...
CK-12 Foundation
Ck 12: Elem Math: Subtraction 3 Digits Minus 2 Digits
[Free Registration/Login may be required to access all resource tools.] The video describes how to use regrouping when subtraction a two-digit number from a three-digit number. The video is followed by additional problems for students to...
CK-12 Foundation
Ck 12: Elem Math: Multiplication Sentences Ii: Numbers 2, 3, 4, 5, and 10
[Free Registration/Login may be required to access all resource tools.] The video shows how to use a multiplication symbol of (x) to write a multiplication sentence and solve. The video is followed by a series of practice questions to...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 2
[Free Registration/Login may be required to access all resource tools.] The PLIX interactive media allows students to manipulate straws into glasses to understand the concept of multiplying by twos, followed by a video that connects...
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: Multiplying by 10
[Free Registration/Login may be required to access all resource tools.] The video connects multiplication to repeated addition with multiplying by 10. The video is followed by a series of practice questions to assess student...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 7
[Free Registration/Login may be required to access all resource tools.] The video explains the connection from multiplication to repeated addition with multiplying by seven. The video is followed by a series of practice questions to...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 8
[Free Registration/Login may be required to access all resource tools.] The video explains the connection from multiplication to repeated addition with multiplying by eight. The video is followed by a series of practice questions to...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 9
[Free Registration/Login may be required to access all resource tools.] The video explains the connection from multiplication to repeated addition with multiplying by eight. The video is followed by a series of practice questions to...
CK-12 Foundation
Ck 12: Elem Math: Multiplying by 11
[Free Registration/Login may be required to access all resource tools.] The video describes how to multiply by 11 using repeated addition. The video is followed by a series of practice questions to assess student comprehension of the...
CK-12 Foundation
Ck 12: Elem Math: Understanding Grouping With Illustrations
[Free Registration/Login may be required to access all resource tools.] The video shows how to use grouping with pictures to determine how many total groups of three are displayed. The video is followed by additional problems for...
CK-12 Foundation
Ck 12: Elem Math: Turning Numbers Into Words Within Word Problems
[Free Registration/Login may be required to access all resource tools.] The video describes how to change a number into the corresponding words, with a number in the hundreds place including a review of place value. The video is followed...
CK-12 Foundation
Ck 12: Elem Math: Identifying Values of Digits
[Free Registration/Login may be required to access all resource tools.] The video reviews place value and shows how to determine the value of each digit in a number. The video is followed by a series of practice questions to assess...
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