Adding and Subtracting Multi Digit Numbers (regrouping)

Front

What is regrouping in addition?

Back

Regrouping in addition is when you carry over a value from one place value to the next when the sum of a column exceeds 10.

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is when you borrow from the next place value when the top number is smaller than the bottom number in a column.

Front

What is the sum of 481 and 647?

Back

1,128

Front

What is the difference when you subtract 53 from 108?

Back

55

Front

What is the sum of 999 and 326?

Back

1,325

Front

What is the difference when you subtract 57 from 100?

Back

43

Front

What is the difference when you subtract 187 from 743?

Back

556

Front

What do you do when the sum of a column is more than 10?

Back

You regroup by carrying over to the next column.

Front

What do you do when you need to subtract a larger number from a smaller number in a column?

Back

You regroup by borrowing from the next column.

Front

What is the first step in adding multi-digit numbers?

Back

Align the numbers by their place values.