Mathematics - Addition and Subtraction - Two-digit subtraction with regrouping - Borrowing Step-by-Step
Walk through 53-28 in 7 steps: (1) Write vertically. (2) Start with ones: 3-8... can't do! 3 is less than 8. (3) BORROW: Take 1 ten from the tens column (5 becomes 4). (4) That ten becomes 10 ones added to the 3, making 13. (5) Now: 13-8=5, write 5 in ones. (6) Tens: 4-2=2, write 2 in tens. (7) Answ