These Year 6 adding near multiples of 10 worksheets help pupils develop efficient mental maths strategies by adjusting numbers close to multiples of ten.
Instead of relying on written methods, pupils learn to calculate more quickly by adding the nearest multiple of 10 and then adjusting the answer. This helps build strong number sense and flexible mental calculation skills — essential for success in Key Stage 2 SATs and Australian NAPLAN tests.
For example:
84 + 19
Think: 84 + 20 = 104
Then adjust: 104 − 1 = 103
By practising this strategy regularly, pupils develop faster and more confident mental maths skills.
What’s Included
This resource includes three differentiated worksheets to support a wide range of learners.
Triangles (Support Level)
Pupils practise adding numbers such as +9 and +11 to four-digit numbers.
They learn to adjust answers by adding or subtracting 1 after using the nearest multiple of ten.
Circles (Core Level)
Calculations include numbers such as +19 and +21.
Pupils practise adjusting answers by 1 or 2 after using nearby multiples of 10 or 20.
Squares (Challenge Level)
More demanding calculations include numbers such as +38, +39, +48, +59, +71 and +82.
These questions require pupils to adjust answers by 1, 2 or 3, strengthening advanced mental maths skills.
Each worksheet contains 20 questions, along with complete answer sheets.
Perfect For
Why Teachers Love This Resource
✔ Builds efficient mental calculation strategies
✔ Clear three-level differentiation (Triangles, Circles, Squares)
✔ Encourages flexible thinking rather than written methods
✔ Ideal for SATs mental arithmetic practice
✔ Printable and classroom-ready
These Year 6 adding near multiples of 10 worksheets help pupils develop efficient mental maths strategies by adjusting numbers close to multiples of ten.
Instead of relying on written methods, pupils learn to calculate more quickly by adding the nearest multiple of 10 and then adjusting the answer. This helps build strong number sense and flexible mental calculation skills — essential for success in Key Stage 2 SATs and Australian NAPLAN tests.
For example:
84 + 19
Think: 84 + 20 = 104
Then adjust: 104 − 1 = 103
By practising this strategy regularly, pupils develop faster and more confident mental maths skills.
What’s Included
This resource includes three differentiated worksheets to support a wide range of learners.
Triangles (Support Level)
Pupils practise adding numbers such as +9 and +11 to four-digit numbers.
They learn to adjust answers by adding or subtracting 1 after using the nearest multiple of ten.
Circles (Core Level)
Calculations include numbers such as +19 and +21.
Pupils practise adjusting answers by 1 or 2 after using nearby multiples of 10 or 20.
Squares (Challenge Level)
More demanding calculations include numbers such as +38, +39, +48, +59, +71 and +82.
These questions require pupils to adjust answers by 1, 2 or 3, strengthening advanced mental maths skills.
Each worksheet contains 20 questions, along with complete answer sheets.
Perfect For
Why Teachers Love This Resource
✔ Builds efficient mental calculation strategies
✔ Clear three-level differentiation (Triangles, Circles, Squares)
✔ Encourages flexible thinking rather than written methods
✔ Ideal for SATs mental arithmetic practice
✔ Printable and classroom-ready
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