Worked example: Subtracting 3-digit numbers (regrouping)
imp-addition-and-subtraction--imp-subtracting-with-regrouping-within-1000--basic-regrouping-or-borrowing-when-subtracting-three-digit-numbers
Addition, subtraction, and estimation
Subtracting with regrouping within 1000
Learn to use regrouping (borrowing) and place value to subtract 971-659.