Addition with regrouping (3.4A)

Front

What is addition with regrouping?

Back

Addition with regrouping is a method used when the sum of two digits in a column exceeds 9, requiring the 'extra' value to be carried over to the next column.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

How do you perform addition with regrouping?

Back

To perform addition with regrouping, align the numbers by place value, add each column starting from the right, carry over any value greater than 9 to the next column.

Tags

CCSS.2.NBT.B.7

Front

What is the sum of 651 and 349?

Back

The sum of 651 and 349 is 1000.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 278 and 342?

Back

The sum of 278 and 342 is 620.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 564 and 283?

Back

The sum of 564 and 283 is 847.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the sum of 485 and 409?

Back

The sum of 485 and 409 is 894.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is a carry in addition?

Back

A carry in addition occurs when the sum of a column exceeds 9, and the extra value is carried over to the next column.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

Why is it important to line up numbers by place value in addition?

Back

Lining up numbers by place value ensures that each digit is added correctly according to its value, preventing errors in the final sum.

Tags

CCSS.2.NBT.B.7

Front

What is the first step in solving an addition problem with regrouping?

Back

The first step is to write the numbers one under the other, aligning them by their place values (ones, tens, hundreds, etc.).

Tags

CCSS.2.NBT.B.7

Front

How do you handle a carry when adding two digits?

Back

When adding two digits, if their sum is 10 or more, write down the rightmost digit and carry over the leftmost digit to the next column.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5