Year 3 Adding Near Multiples of 10 Worksheets
This differentiated worksheet set helps children practise adding numbers that are close to multiples of 10, an important mental maths strategy taught in Key Stage 2.
Instead of adding numbers like 19 or 21 directly, pupils learn to add the nearest multiple of 10 first and then adjust the answer. This develops flexible thinking and strengthens number sense.
For example:
326 + 9
→ Add 10 first = 336
→ Adjust by subtracting 1
→ Final answer = 335
This strategy helps pupils calculate more efficiently and prepares them for more advanced mental maths.
What’s Included
This resource includes three differentiated worksheets plus full answer sheets:
Triangles (Support Level)
• Adding numbers such as +9 and +11
• Builds understanding of adjusting by 1
Circles (Middle Level)
• Adding numbers such as +19, +21, +31, +41
• Encourages using the nearest multiple of 10 strategy
Squares (Challenge Level)
• Larger numbers and more complex near multiples
• Extends pupils’ mental maths skills
Perfect For
• Year 3 maths homework
• KS2 classroom practice
• Mental maths strategy development
• SATs preparation
• Australian NAPLAN Year 3 numeracy practice
• Differentiated maths groups
Features
✔ 3 differentiated worksheets
✔ Answer sheets included
✔ Clear mental maths strategy instruction
✔ Printer-friendly design
✔ Ideal for homework or independent practice
Year 3 Adding Near Multiples of 10 Worksheets
This differentiated worksheet set helps children practise adding numbers that are close to multiples of 10, an important mental maths strategy taught in Key Stage 2.
Instead of adding numbers like 19 or 21 directly, pupils learn to add the nearest multiple of 10 first and then adjust the answer. This develops flexible thinking and strengthens number sense.
For example:
326 + 9
→ Add 10 first = 336
→ Adjust by subtracting 1
→ Final answer = 335
This strategy helps pupils calculate more efficiently and prepares them for more advanced mental maths.
What’s Included
This resource includes three differentiated worksheets plus full answer sheets:
Triangles (Support Level)
• Adding numbers such as +9 and +11
• Builds understanding of adjusting by 1
Circles (Middle Level)
• Adding numbers such as +19, +21, +31, +41
• Encourages using the nearest multiple of 10 strategy
Squares (Challenge Level)
• Larger numbers and more complex near multiples
• Extends pupils’ mental maths skills
Perfect For
• Year 3 maths homework
• KS2 classroom practice
• Mental maths strategy development
• SATs preparation
• Australian NAPLAN Year 3 numeracy practice
• Differentiated maths groups
Features
✔ 3 differentiated worksheets
✔ Answer sheets included
✔ Clear mental maths strategy instruction
✔ Printer-friendly design
✔ Ideal for homework or independent practice
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