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Year 4 in England

3rd grade addition and subtraction

9 3rd grade addition and subtraction skills, each with a worked example, free practice that checks every answer, and a printable worksheet. Start with a mixed review, or jump to the skill you need.

Mixed review

Ten questions drawn from every skill below.

Print a review worksheetRiddle puzzle on screenBingo

Column addition and subtraction

CCSS 3.NBT.A.2England: Y3 Addition and subtractionEngland: Y4 Addition and subtraction

Example

Use column addition: 4009 + 3930

  1. 4009 + 3930 = 7939

Answer: 7939

Builds on: Add and subtract within 1000

Leads to: Add and subtract multi-digit numbers, Add and subtract decimals, Mean, median, mode and range, Order of operations

Print a worksheet✏️ Write on screenFlashcards

Estimate sums and differences

CCSS 3.OA.D.8CCSS 3.NBT.A.1England: Y3 Addition and subtractionEngland: Y4 Addition and subtraction

Example

Estimate 129 + 529 by rounding each number to the nearest hundred first.

  1. 129 ≈ 100
  2. 529 ≈ 500
  3. 100 + 500 = 600

Answer: 600

Builds on: Round to the nearest 10 or 100, Add and subtract within 1000

Leads to: Use rounding to check if an answer is reasonable

Print a worksheet✏️ Write on screenFlashcards

Add three-digit numbers with regrouping

CCSS 3.NBT.A.2England: Y3 Addition and subtraction

Example

256 + 351 = ?

  1. ones: 6 + 1 = 7
  2. tens: 5 + 5 = 10, carry 1
  3. hundreds: 2 + 3 + 1 = 6
  4. 256 + 351 = 607

Answer: 607

Builds on: Add and subtract within 1000

Leads to: Add four-digit numbers in columns, Find missing digits in column sums, Check answers with the inverse operation

Print a worksheet✏️ Write on screenFlashcards

Subtract three-digit numbers with exchanging

CCSS 3.NBT.A.2England: Y3 Addition and subtraction

Example

313 − 175 = ?

  1. ones: exchange, 13 − 5 = 8
  2. tens: exchange, 10 − 7 = 3
  3. hundreds: 2 − 1 = 1
  4. 313 − 175 = 138

Answer: 138

Builds on: Add and subtract within 1000, Subtract two-digit numbers with regrouping

Leads to: Subtract four-digit numbers in columns, Find missing digits in column sums, Check answers with the inverse operation

Print a worksheet✏️ Write on screenFlashcards

Add four-digit numbers in columns

CCSS 4.NBT.B.4England: Y4 Addition and subtraction

Example

3946 + 2982 = ?

  1. ones: 6 + 2 = 8
  2. tens: 4 + 8 = 12, carry 1
  3. hundreds: 9 + 9 + 1 = 19, carry 1
  4. thousands: 3 + 2 + 1 = 6
  5. 3946 + 2982 = 6928

Answer: 6928

Builds on: Add three-digit numbers with regrouping, Value of a digit in four-digit numbers

Leads to: Add numbers with more than four digits

Print a worksheet✏️ Write on screenFlashcards

Subtract four-digit numbers in columns

CCSS 4.NBT.B.4England: Y4 Addition and subtraction

Example

9991 − 3388 = ?

  1. ones: exchange, 11 − 8 = 3
  2. tens: 8 − 8 = 0
  3. hundreds: 9 − 3 = 6
  4. thousands: 9 − 3 = 6
  5. 9991 − 3388 = 6603

Answer: 6603

Builds on: Subtract three-digit numbers with exchanging, Value of a digit in four-digit numbers

Leads to: Subtract numbers with more than four digits

Print a worksheet✏️ Write on screenFlashcards

Find missing digits in column sums

CCSS 3.NBT.A.2England: Y3 Addition and subtractionEngland: Y4 Addition and subtraction

Example

2▢0 + 379 = 629. What digit is ▢?

  1. 629 − 379 = 250
  2. 5

Answer: 5

Builds on: Add three-digit numbers with regrouping, Subtract three-digit numbers with exchanging

Print a worksheet✏️ Write on screenFlashcards

Check answers with the inverse operation

CCSS 3.NBT.A.2England: Y3 Addition and subtractionEngland: Y4 Addition and subtraction

Example

Which calculation checks 570 − 102 = 468?

  1. 468 + 102 = 570
  2. 468 + 102

Answer: 468 + 102

Builds on: Add three-digit numbers with regrouping, Subtract three-digit numbers with exchanging

Print a worksheet✏️ Write on screenFlashcards

Mental addition and subtraction by adjusting (99, 199, 101…)

CCSS 3.NBT.A.2England: Y3 Addition and subtraction

Example

388 − 101 = ?

  1. 388 − 100 = 288
  2. 288 − 1 = 287

Answer: 287

Builds on: Add and subtract within 1000

Print a worksheet✏️ Write on screenFlashcards

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