Addition to 1,000
Addition to 1,000 without crossing tens or hundreds
Addition to 1,000 without crossing tens or hundreds
Addition to 1,000 using standard algorithm with regrouping
Addition to 1,000 using standard algorithm with regrouping
Addition to 1,000 with three or more random numbers
Addition to 1,000 with three or more random numbers
Addition to 1,000 using grouping with three or more addends
Addition to 1,000 using grouping with three or more addends
Addition to 1,000 by splitting the second addend into hundreds, tens, and ones
Addition to 1,000 by splitting the second addend into hundreds, tens, and ones
Addition to 1,000 with three or more simple numbers
Addition to 1,000 with three or more simple numbers
Addition to 1,000 by counting, with hundreds and tens
