Two digit addition with regrouping

Front

What is two-digit addition with regrouping?

Back

Two-digit addition with regrouping is a method used to add two-digit numbers where the sum of the digits in a column exceeds 9, requiring a carry to the next column.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

How do you add two-digit numbers without regrouping?

Back

To add two-digit numbers without regrouping, simply add the digits in each column (tens and ones) without carrying over any value.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the first step in solving a two-digit addition problem?

Back

The first step is to align the numbers vertically by their place values (tens and ones) before adding.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

In the problem 57 + 13, what is the sum of the ones place?

Back

The sum of the ones place is 7 (from 57) + 3 (from 13) = 10, which requires regrouping.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What do you do when the sum of the ones place exceeds 9?

Back

When the sum exceeds 9, write down the ones digit of the sum and carry over the tens digit to the next column.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

In the problem 27 + 45, what is the sum of the tens place after regrouping?

Back

After regrouping, the sum of the tens place is 2 (from 27) + 4 (from 45) + 1 (carried over) = 7.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

How do you solve the problem 58 + 24 step by step?

Back

1. Align the numbers: 58 + 24. 2. Add the ones: 8 + 4 = 12 (write 2, carry 1). 3. Add the tens: 5 + 2 + 1 = 8. 4. The answer is 82.

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

What is the importance of regrouping in addition?

Back

Regrouping is important in addition because it allows for accurate calculations when the sum of digits exceeds the base value (10 in decimal).

Tags

CCSS.6.NS.B.3

Front

How can word problems help in understanding two-digit addition?

Back

Word problems provide real-life contexts that require the application of two-digit addition, helping students to practice and reinforce their understanding.

Tags

CCSS.2.NBT.B.7

Front

What is the total score of Ms. Barcome and Ms. Morales?

Back

Ms. Barcome scored 27 points and Ms. Morales scored 31 points, so their total score is 27 + 31 = 58.

Tags

CCSS.2.OA.A.1