2-Digit Subtraction Worksheets

Open with Borrowing set to None for a child's first pages, so they subtract ones and then tens without any trading. After a lesson on borrowing, use Every problem for focused practice, and Mixed for review. Ten minutes is about right. Use the answer key to mark, then redo the errors with tens and ones blocks. The bottom number is never larger than the top, so no answer goes below zero.

Borrowing is the hardest idea in early arithmetic, because it asks the child to break a ten into ten ones. Many children subtract the smaller digit from the larger whichever way up it sits, which gives wrong answers. Place value must be firm. Subtraction within 20 comes before this, and regrouping with bigger numbers follows in Grade 3. Checking by adding back is the habit worth building.

Keep 12 problems on the first day, so the borrowing marks have room. Use None until the child is secure with the ones and tens. Mixed shows whether they can decide for themselves when to borrow. Teach the check: add the answer to the bottom number and see if you return to the top. Missing number mode builds reasoning about the same relationship.

How do I explain borrowing simply?

Show that you cannot take 7 ones from 2 ones, so you break one ten into ten ones. Use blocks or drawings, then write the changed numbers above the digits. The picture matters more than the rule.

Why do some answers come out wrong when the child swaps digits?

They subtract the smaller digit from the larger without regard to position. Remind them the top number must stay on top, and use the Every problem setting to practice borrowing until it becomes automatic.

Can answers on this page be negative?

No. The bottom number is never larger than the top, so every answer is zero or above. Negative numbers appear much later, in the Grade 5 integer pages.