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Khan Academy (English - US curriculum)
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Khan Academy (English - US curriculum)
Math
Arithmetic
Add and subtract through 1,000,000
Strategies for subtracting within 1,000
Strategies for subtracting within 1,000
Subtracting 1, 10, or 100
Subtracting 1s, 10s, and 100s
Subtracting 3-digit numbers (no regrouping)
Subtract 10s and 100s (no regrouping)
Subtracting with place value blocks (regrouping)
Subtract within 1,000 using place value blocks
