Addition and Subtraction with regrouping (3.NBT.2)

Front

What is regrouping in addition and subtraction?

Back

Regrouping is the process of carrying over or borrowing numbers when performing addition or subtraction, especially when the digits in one column exceed the base value (10 for addition, 10 for subtraction).

Tags

CCSS.2.NBT.B.7

Front

How do you perform addition with regrouping?

Back

To perform addition with regrouping, start from the rightmost column, add the digits, and if the sum exceeds 9, carry over the extra value to the next column on the left.

Tags

CCSS.2.NBT.B.5

CCSS.1.NBT.C.4

Front

How do you perform subtraction with regrouping?

Back

To perform subtraction with regrouping, start from the rightmost column, subtract the digits, and if the top digit is smaller than the bottom digit, borrow from the next column to the left.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the sum of 572 and 348?

Back

The sum of 572 and 348 is 920.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the difference when subtracting 297 from 502?

Back

The difference when subtracting 297 from 502 is 205.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the result of 193 minus 77?

Back

The result of 193 minus 77 is 116.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the result of 485 plus 409?

Back

The result of 485 plus 409 is 894.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

What is the result of 456 minus 268?

Back

The result of 456 minus 268 is 188.

Tags

CCSS.3.NBT.A.2

CCSS.2.NBT.B.7

Front

Why is it important to understand regrouping in math?

Back

Understanding regrouping is important because it allows students to accurately perform addition and subtraction with larger numbers, ensuring correct calculations.

Tags

CCSS.5.NBT.B.7

Front

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

Back

The first step is to align the numbers by their place values (ones, tens, hundreds) and start adding from the rightmost column.

Tags

CCSS.2.NBT.B.7