Maths Addition and
Subtraction Workbook
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Home Learning Maths
Workbook Pack
Year 3 Programme of Study – Addition and Subtraction
Statutory Requirements
A three digit number and ones
A three digit number and tens
A three digit number and
hundreds.
Add and subtract numbers with
up to three digits, using formal
written methods of columnar
addition and subtraction.
Worksheet
Adding ones to a 3 digit number
worksheet
Subtracting ones from a 3 digit
number worksheet
Adding tens to a 3 digit number
worksheet
Subtracting tens from a 3 digit
number worksheet
Adding hundreds to a 3 digit
number worksheet
Subtracting hundreds from a 3
digit number worksheet
Adding 3 and 2 digit numbers in a
column with no carrying answers
Page
Number
4
5
6
7
8
9
10
Adding 3 and 2 digit numbers in
a column with carrying answers
11
Subtracting 2 digit numbers from
3 digit numbers in a column with
no exchanging
12
Subtracting 2 digit numbers from
3 digit numbers in a column
with exchanging worksheet
13
Adding two 3 digit numbers in a
column with no carrying answers
14
Adding two 3 digit numbers in
a column with carrying answers
worksheet
15
Subtracting 3 digit numbers from
3 digit numbers in a column with
no exchanging worksheet
16
Subtracting 3 digit numbers from
3 digit numbers in a column with
exchanging worksheet
17
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Notes
Statutory Requirements
Worksheet
Inverse checking 2 digit by 2
digit mixed with carrying and
exchanging choice of method
worksheet
Estimate the answer to a
calculation and use inverse
operations to check answers.
Solve problems, including missing
number problems, using number
facts, place value
value, and more complex addition
and subtraction.
Page
Number
18
Inverse checking 3 digit by 2
digit mixed with carrying and
exchanging choice of method
worksheet
19
Inverse checking 3 digit by 3
digit mixed with carrying and
exchanging worksheet
20
Inverse create addition and
subtraction calculations from a set
of 3 numbers worksheet
21
Estimating Answers Worksheet
22 - 23
Exemplary Calculation Procedure
24 - 25
Addition and subtraction word
problems worksheet year 3
26
Addition and subtraction using
worded calculations year 3
27
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Notes
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1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
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4
9
7
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5
8
5
1
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Calculate the answer to the following calculations and check by using the inverse (addition or
subtraction). Choose the best method for you - column method, number line, near doubles etc.
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Calculate the answer to the following calculations and check by using the inverse (addition or
subtraction). Choose the best method for you - column method, number line, near doubles etc.
Challenge: use 2 different methods to calculate and check this calculation.
Can you explain which method you find better?
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Calculate the answer to the following calculations and check by using the inverse (addition or
subtraction). Choose the best method for you - column method, number line, near doubles etc.
.
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Estimating Answers
To answer the following questions decide which multiple of 10 each number is closest to and then add or subtract
the numbers. Trying to answer quickly will help you to practise estimating rather than working the answer out.
Example
1. 32 + 59 =
My estimate:
30
+
60
= 90
Estimating Addition:
1. 32 + 59 =
My estimate:
2. 23 + 28 =
+
My estimate:
=
3. 51 + 53 =
My estimate:
+
My estimate:
=
+
My estimate:
=
=
+
=
8. 88 + 109 =
+
My estimate:
=
9. 127 + 152 =
My estimate:
+
6. 59 + 92 =
7. 132 + 19 =
My estimate:
=
4. 81 + 33 =
5. 89 + 27 =
My estimate:
+
+
=
+
=
10. 353 + 281 =
+
My estimate:
=
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Estimating Subtraction:
1. 58 - 32 =
My estimate:
2. 79 - 22 =
-
My estimate:
=
3. 104 - 51 =
My estimate:
-
My estimate:
=
-
My estimate:
=
=
-
=
8. 288 - 109 =
-
My estimate:
=
9. 257 - 152 =
My estimate:
-
6. 229 - 92 =
7. 132 - 17 =
My estimate:
=
4. 121 - 33 =
5. 129 - 27 =
My estimate:
-
-
=
-
=
10. 353 - 281 =
-
My estimate:
=
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Exemplary Calculation Procedure
Estimating, Answering and Checking with Inverse Operation
1. Begin by estimating your answer using the nearest multiple of 10 for each number.
2. Perform the exact calculation using your chosen method.
3. Check that your answer is close to your estimate.
4. Check your answer is correct by working backwards using the inverse operation.
Addition Calculations:
Example:
Number Sentence
e.g. 57 + 39
My Estimate
Calculation
Answer close
to estimate
96/100 = Yes!
60 + 40 = 100
5 7
+3 9
9 6
Number Sentence
My Estimate
Calculation
1. 39 + 23
2. 18 + 54
3. 67 + 54
4. 126 + 43
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Check with Inverse Correct?
8
Yes!
1
9 6
-3 9
5 7
Answer close
to estimate
Check with Inverse Correct?
5. 218 + 133
Subtraction Calculations:
Example:
Number Sentence
e.g. 84 - 29
My Estimate
80 – 30 = 50
Calculation
7
Answer close
to estimate
50/55 = Yes!
1
8 4
-2 9
5 5
Number Sentence
My Estimate
Calculation
1. 59 - 22
2. 97 - 18
3. 126 - 32
4. 188 - 52
5. 352 - 169
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Answer close
to estimate
Check with Inverse Correct?
5 5
+ 2 9
81 4
Yes!
Check with Inverse Correct?
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