Mastering 3-Digit Addition with Regrouping

Miss Le teaches how to add three-digit numbers with regrouping using base 10 blocks. The lesson begins with modeling the equation 348 + 234, organizing the numbers, and explaining the regrouping process. Another example, 314 + 267, is drawn and solved. The video concludes with encouragement and contact information for further engagement.

How many hundreds are there in the number 348?

• 4 hundreds

• 2 hundreds

• 3 hundreds

• 8 hundreds

Tags

CCSS.2.NBT.A.1B

What is the total number of tens after initially combining 348 and 234?

• 10 tens

• 8 tens

• 5 tens

• 7 tens

Tags

CCSS.2.NBT.B.7

What is the purpose of organizing base ten blocks in rows of five?

• To increase their value

• To reduce their number

• To change their color

• To make them easier to count

Tags

CCSS.1.NBT.A.1

What action is performed to adjust twelve ones in the addition process?

• Ignore the extra ones

• Combine into one group

• Split into two groups

• Regroup ten into one ten

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the final sum of 348 + 234 after regrouping?

• 572

• 592

• 582

• 602

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What does regrouping ten ones into one ten help achieve in three-digit addition?

• Decrease the number of blocks

• Simplify counting

• Create more ones

• Increase the total sum

Tags

CCSS.2.NBT.B.7

Which colors are used to represent the numbers 314 and 267?

• Blue and pink

• Yellow and blue

• Red and green

• Green and orange

Tags

CCSS.2.NBT.B.7

How many ones are left after regrouping in the equation 314 + 267?

• 2 ones

• 1 one

• 3 ones

• 4 ones

Tags

CCSS.2.NBT.B.7

How many hundreds are there in the number 267?

• 4 hundreds

• 1 hundred

• 3 hundreds

• 2 hundreds

Tags

CCSS.2.NBT.A.1B

What is the final sum of 314 + 267?

• 581

• 601

• 571

• 591

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2