Adding and Subtracting with regrouping

Front

What is regrouping in addition?

Back

Regrouping in addition is the process of carrying over a value from one column to the next when the sum of a column exceeds 9.

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is the process of borrowing from the next column when the top number is smaller than the bottom number in a column.

Front

What is the sum of 92 and 21?

Back

The sum of 92 and 21 is 113.

Front

What is the sum of 278 and 465?

Back

The sum of 278 and 465 is 743.

Front

What is the sum of 5,842 and 1,998?

Back

The sum of 5,842 and 1,998 is 7840.

Front

What is the difference when you subtract 415 from 647?

Back

The difference when you subtract 415 from 647 is 232.

Front

What is the difference when you subtract 56 from 90?

Back

The difference when you subtract 56 from 90 is 34.

Front

How do you add two numbers with regrouping?

Back

1. Add the digits in the rightmost column. 2. If the sum is 10 or more, write down the last digit and carry over the 1 to the next column.

Front

How do you subtract two numbers with regrouping?

Back

1. Start from the rightmost column. 2. If the top digit is smaller than the bottom digit, borrow from the next column.

Front

What is the first step in solving 92 + 21?

Back

Add the digits in the ones place: 2 + 1 = 3.