Exploring Addition with Regrouping Techniques

Why is it important to show your work in math problems?

• To make the paper look neat

• To save time

• To ensure you understand the steps

• To impress the teacher

What is the first step in adding multi-digit numbers?

• Start from the ones column

• Start from the leftmost column

• Regroup all numbers first

• Add the tens column first

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

In the first example, what is the sum of 6 and 7?

• 14

• 13

• 12

• 15

Tags

CCSS.1.OA.A.1

In the first example, what do you do after adding the ones column?

• Move to the hundreds column

• Regroup and add the tens column

• Add the thousands column

• Write the final answer

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the sum of 9 and 8 in the second example?

• 17

• 16

• 19

• 18

Tags

CCSS.1.OA.A.1

Why is it important to line up numbers correctly in addition?

• To ensure correct place value alignment

• To make the teacher happy

• To save time

• To make the numbers look neat

Tags

CCSS.2.NBT.B.7

In the third example, what is the sum of 6 and 8?

• 12

• 14

• 13

• 15

Tags

CCSS.1.OA.A.1

In the third example, what is the sum of 3 and 3 in the 10,000 column?

• 8

• 6

• 5

• 7

Tags

CCSS.4.NBT.B.4

In the fourth example, what is the sum of 5 and 5?

• 9

• 10

• 12

• 11

Tags

CCSS.1.OA.A.1

What is the correct final answer in the fourth example?

• 3,892

• 300,892

• 30,892

• 308,092

Tags

CCSS.6.NS.B.3