Addition with Regrouping

Front

What is Addition with Regrouping?

Back

Addition with regrouping is a method used to add numbers that require carrying over a value to the next column when the sum exceeds 9.

Front

What does it mean to 'round' a number?

Back

Rounding a number means adjusting it to the nearest ten, hundred, etc., to make it easier to work with.

Front

How do you round 11 to the nearest ten?

Back

11 rounds to 10 because it is closer to 10 than to 20.

Front

How do you round 89 to the nearest ten?

Back

89 rounds to 90 because it is closer to 90 than to 80.

Front

What is the sum of 126 and 171?

Back

126 + 171 = 297.

Front

What is the sum of 394 and 97?

Back

394 + 97 = 491.

Front

If a shop sold 145 donuts and has 45 left, how many did it start with?

Back

145 + 45 = 190. The shop started with 190 donuts.

Front

What is the first step in addition with regrouping?

Back

The first step is to line up the numbers by their place values (ones, tens, hundreds, etc.).

Front

What do you do if the sum of a column is greater than 9?

Back

You carry over the extra value to the next column on the left.

Front

What is the sum of 89 and 72?

Back

89 + 72 = 161.