Year 6 Addition and Subtraction Worksheet - Beginner

Year 6 Addition and Subtraction worksheet for Year 6 (Key Stage 2 / Year 3-6 (Ages 7-11)). Beginner level maths practice, aligned to the UK National Curriculum. Print-ready with answer key included.

Maths•Key Stage 2 / Year 3-6 (Ages 7-11)•Additionbeginner

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Year 6 Addition and Subtraction: Think, Calculate, Check

Ages 10–11 • Beginner-friendly Year 6 maths

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Instructions: Work through each activity in order, showing clear methods where helpful. For estimation, round each number to a sensible place value before calculating; then compare your estimate with your exact answer. Check calculations by using the inverse operation or by following the order of operations.

Mental Maths with Large Numbers

Calculate each one mentally, using place-value adjustments where possible. For example, 398,000 + 2,000 = 400,000. Write your answer in each box.

1. 2,450,000 + 300,000 =

2. 6,000,000 − 250,000 =

3. 1,999,999 + 1 =

4. 4,300,000 − 1,500,000 =

5. 725,000 + 275,000 − 100,000 =

Mixed Operations in Your Head

Work out each calculation mentally, one step at a time. Remember that addition and subtraction have equal priority, so calculate them from left to right. Use the example as a guide: 4,800 − 300 + 200 = 4,500 + 200 = 4,700.

1. 3,600 + 1,250 − 850 =

2. 9,000 − 2,750 + 500 =

3. 12,500 + 3,500 − 6,000 =

4. 25,000 − 7,500 − 2,500 =

5. 1,250,000 + 750,000 − 500,000 =

Order of Operations

Use the order of operations: calculate brackets first, then multiplication and division, and finally addition and subtraction. Multiplication and division have equal priority, as do addition and subtraction; work from left to right within each pair. Example: 6 + 3 × 4 = 6 + 12 = 18.

1. 18 + 6 × 4 =

2. (18 + 6) × 4 =

3. 72 ÷ 8 + 15 − 4 =

4. 50 − 24 ÷ 6 × 3 =

5. 100 − (36 + 4) ÷ 5 =

Choose the Best Estimate

Round each number to a convenient place value before estimating. Then calculate the exact answer and write both results. For example, 4,180 + 2,920 is about 4,000 + 3,000 = 7,000.

1. Estimate and then calculate: 4,180 + 2,920. Estimate: Exact answer:

2. Estimate and then calculate: 9,760 − 3,140. Estimate: Exact answer:

3. Estimate and then calculate: 24,850 + 16,120. Estimate: Exact answer:

4. Estimate and then calculate: 80,300 − 29,750. Estimate: Exact answer:

Addition and Subtraction in Context

Read each problem carefully and choose the operations needed. Show your calculation in the box; you may use more than one step. Check each result by estimating or using the inverse operation.

1. A library has 24,680 books. It receives 3,750 new books and removes 1,280 damaged books. How many books are there now?

2. A charity aims to raise £50,000. It has raised £18,750 in May and £16,480 in June. How much more must it raise?

3. A train journey is 486 km. A train travels 178 km before a stop and 205 km after it. How many kilometres remain?

4. A stadium has 42,500 seats. For one event, 18,760 tickets are sold in advance and 16,895 are sold on the day. How many seats are empty?

Check It with an Estimate

For each calculation, first decide whether the stated answer is reasonable by estimating. Then calculate the exact answer and write whether the stated answer is correct. If it is incorrect, give the correct answer.

1. 38,742 + 21,906 = 60,648. Estimate: Exact answer: Correct or incorrect?

2. 75,300 − 28,650 = 47,650. Estimate: Exact answer: Correct or incorrect?

3. 6,250 + 3,850 − 2,100 = 8,000. Estimate: Exact answer: Correct or incorrect?

4. 100,000 − 39,995 = 60,005. Estimate: Exact answer: Correct or incorrect?

Answer Key

Activity 1: 2,750,000 ; 5,750,000 ; 2,000,000 ; 2,800,000 ; 900,000

Activity 2: 4,000 ; 6,750 ; 10,000 ; 15,000 ; 1,500,000

Activity 3: 42 ; 96 ; 20 ; 38 ; 92

Activity 4: 1. Estimate 7,000; exact 7,100 ; 2. Estimate 7,000; exact 6,620 ; 3. Estimate 41,000; exact 40,970 ; 4. Estimate 50,000; exact 50,550

Activity 5: 1. 27,150 books ; 2. £14,770 ; 3. 103 km ; 4. 6,845 seats

Activity 6: 1. Estimate 60,000; exact 60,648; correct ; 2. Estimate 47,000; exact 46,650; incorrect, correct answer 46,650 ; 3. Estimate 8,000; exact 8,000; correct ; 4. Estimate 60,000; exact 60,005; correct