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CK-12 Foundation
Ck 12: Elem Math: Subtracting Using Tens and Ones
[Free Registration/Login may be required to access all resource tools.] The video shows a model of how to group using tens and ones, subtract, and then count what is left using the grouping. The video is followed by a series of practice...
NumberNut
Number Nut: Numbers and Counting: Counting to 50
Did you know that counting and all numbers are based on tens and that everything starts over when you hit a number with a "0" in the ones column? This lesson provides strategies and pattterns for counting to fifty and includes two...
NumberNut
Number Nut: Numbers and Counting: Counting to 1,000
Follow the steps in the examples for place value to the thousands place and then practice the skills with the two interactive activities.
E-learning for Kids
E Learning for Kids: Math: Igloo: Multiplication
On this interactive website students practice various math skills using a real life scenario at an igloo. Those skills include counting by ones, fives and tens up to fifty.
CK-12 Foundation
Ck 12: Elem Math: Representing Numbers in Expanded Form Ii (Grade 4)
[Free Registration/Login may be required to access all resource tools.] This learning module features an interactive, a video, and a practice quiz in which students identify the ones, tens, or hundreds digit of a value by counting the...