Addition with regrouping

Front

What is addition with regrouping?

Back

Addition with regrouping is a method used when the sum of two digits in a column is 10 or more. You carry over the extra value to the next column.

Front

What does the term 'place value' mean?

Back

Place value refers to the value of a digit based on its position in a number. For example, in the number 513, the 5 is in the hundreds place.

Front

How do you add 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. 3. Repeat for all columns.

Front

What is the value of the digit 3 in the number 530?

Back

The value of the digit 3 in the number 530 is 30, because it is in the tens place.

Front

If you have 8 + 5, what do you do?

Back

8 + 5 equals 13. You write down 3 and carry over 1 to the next column.

Front

What is the sum of 27 and 36?

Back

The sum of 27 and 36 is 63.

Front

What does it mean to 'carry over' in addition?

Back

To 'carry over' means to move a value from one column to the next when the sum exceeds 9.

Front

What is the value of the digit 2 in the number 230?

Back

The value of the digit 2 in the number 230 is 200, because it is in the hundreds place.

Front

How do you compare numbers using <, >, or =?

Back

You compare numbers by looking at their place values from left to right. For example, 80 > 55 because 8 is greater than 5.

Front

What is the sum of 50 and 23?

Back

The sum of 50 and 23 is 73.