Key Idea1 of 3
When You Can't Subtract the Ones
In 432 - 158, you can't take 8 from 2. Borrow 1 ten from the tens column: the 3 becomes 2, and the 2 becomes 12. Now 12 - 8 = 4.
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Mathematics — Multi-Digit Subtraction with Borrowing
In 432 - 158, you can't take 8 from 2. Borrow 1 ten from the tens column: the 3 becomes 2, and the 2 becomes 12. Now 12 - 8 = 4.