Mastering Addition of Whole Numbers with Regrouping

This lesson teaches how to add whole numbers using regrouping. It starts with an example problem, 578 plus 925, and demonstrates the process of adding numbers in the ones, tens, and hundreds places. The lesson explains how to carry over numbers when the sum exceeds 9, ensuring students understand the concept of regrouping. The final answer is calculated as 1503.

What is the first step in adding the numbers 578 and 925?

• Add the tens place

• Add the ones place

• Add the thousands place

• Add the hundreds place

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What do you do after adding 8 and 5 in the ones place?

• Record the 3 and carry over the 1

• Move to the hundreds place

• Record the 1 and carry over the 3

• Record the 13 directly

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the sum of 7 and 1 in the tens place?

• 7

• 6

• 8

• 9

Tags

CCSS.2.NBT.B.6

After regrouping in the tens place, what is the next step?

• Add the ones place again

• Add the hundreds place

• Subtract the tens place

• Add the thousands place

Tags

CCSS.4.NBT.B.4

What is the final answer to the problem 578 + 925?

• 1503

• 1500

• 1508

• 1505