Subtraction With Regrouping

Front

What is subtraction with regrouping?

Back

Subtraction with regrouping is a method used to subtract numbers when the top digit is smaller than the bottom digit in any column, requiring borrowing from the next column.

Front

What does it mean to 'regroup' in subtraction?

Back

Regrouping in subtraction means to borrow from the next higher place value when the digit in the current place value is smaller than the digit being subtracted.

Front

How do you subtract 23 from 45 using regrouping?

Back

1. Start from the right: 5 - 3 = 2. 2. Move to the left: 4 - 2 = 2. 3. The answer is 22.

Front

What is the first step in subtracting 102 from 250?

Back

The first step is to look at the ones place: 0 cannot be subtracted from 2, so you need to regroup.

Front

If you have 50 - 27, how do you regroup?

Back

You borrow 1 from the 5 in the tens place, making it 4, and add 10 to the 0 in the ones place, making it 10. Now you can subtract: 10 - 7 = 3 and 4 - 2 = 2, so the answer is 23.

Front

What is the result of 1000 - 678?

Back

The result is 322.

Front

How do you subtract 1450 - 305?

Back

1. Start from the right: 0 - 5 cannot be done, so regroup. 2. The answer is 1145.

Front

What is the importance of lining up numbers by place value in subtraction?

Back

Lining up numbers by place value ensures that you subtract digits from the correct columns, which is essential for accurate calculations.

Front

What do you do if you need to subtract a larger digit from a smaller digit in a column?

Back

You regroup by borrowing from the next column to the left.

Front

What is the answer to 172 - 89?

Back

The answer is 83.