Mastering Addition with Regrouping Techniques

The video tutorial guides students through solving addition problems using tens and ones charts. It begins with an introduction to the materials needed, followed by step-by-step solutions to four addition problems: 48 + 25, 54 + 37, 75 + 17, and 68 + 15. Each problem is solved using base 10 blocks and regrouping techniques, with opportunities for students to pause and solve on their own. The tutorial emphasizes understanding the concept of regrouping and checking work for accuracy.

What items are needed to start the addition problems?

• Whiteboard, marker

• Graph paper, calculator

• Yellow math notebook, pencil

• Red math notebook, marker

Tags

CCSS.6.NS.B.3

What is the result of adding 48 and 25 using the tens and ones chart?

• 73

• 83

• 53

• 63

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the first step in adding using the tens and ones chart?

• Add the tens

• Draw the chart

• Regroup the tens

• Add the ones

Tags

CCSS.2.NBT.B.6

When adding 54 and 37, what should the sum be greater than?

• 84

• 91

• 37

• 54

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the correct sum of 54 and 37?

• 81

• 111

• 91

• 101

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

In the problem 75 plus 17, how many tens are in the number 75?

• 5

• 6

• 8

• 7

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the final sum of 75 and 17?

• 102

• 92

• 82

• 112

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

How many ones are left after regrouping in the addition of 68 and 15?

• 1

• 3

• 2

• 4

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the total sum of 68 and 15?

• 73

• 83

• 93

• 103

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What additional activity is suggested if students finish early?

• Go to recess

• Draw in their notebooks

• Read a book

• Play a math game on Clever

Tags

CCSS.RI.2.3

CCSS.RI.2.5

CCSS.RI.3.5

CCSS.RI.4.5

CCSS.RI.5.5