Mastering 3-Digit Addition with Regrouping

What is the first step in solving addition problems with regrouping?

• Start with the tens place

• Start with the ones place

• Add the hundreds place first

• Write down the numbers

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

When adding 48 + 25, what do we do with the number 13 obtained from adding 8 ones and 5 ones?

• Start over

• Ignore the carry over

• Regroup 13 into 1 ten and 3 ones

• Write 13 in the ones place

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

In the example 258 + 124, how many tens are left after regrouping?

• Eight tens

• Two tens

• One ten

• Three tens

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What is the result of adding 179 + 166?

• 345

• 335

• 355

• 365

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

How many hundreds are there in the sum of 458 + 298?

• Eight hundreds

• Six hundreds

• Seven hundreds

• Nine hundreds

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What do we do if we get a two-digit number in the tens place after addition?

• Ignore the extra digit

• Carry over to the hundreds place

• Write it in the tens place

• Start the addition again

Tags

CCSS.2.NBT.B.6

When adding 8 ones and 8 ones, what is the correct way to regroup?

• None of the above

• Carry over two tens

• Split into 1 ten and 6 ones

• Write 16 in the ones place

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the final step in three-digit addition with regrouping?

• Add the ones place

• Regroup the hundreds

• Add the tens place

• Check your work

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What is the sum of 193 + 175?

• 368

• 358

• 378

• 388

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

After solving 689 + 278, what should you do next?

• Practice more problems

• Take a break

• Review the concept of regrouping

• Move on to subtraction

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2