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Addition and subtraction within 1000
Skip counting by 100s
Adding 1s, 10s, and 100s
Subtracting 1s, 10s, and 100s
Strategies for adding 2- and 3-digit numbers
Adding up to four 2-digit numbers
Math
Early math r...
Addition and...
Adding 1s, 1...
Explore adding ones, tens, and hundreds to build strong mental math skills and master foundational addition strategies.
200+ videos and assessments
Standards aligned
Vetted by experts
VIDEOS
Adding 3-digit numbers (no regrouping)
Khan Academy
1th - 5th Grade
10 Qs
6th - 10th Grade
Adding 10 or 100
2th - 4th Grade
The best way to create, adapt, and deliver resources differentiated for every student.
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