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## Mental strategies - subtract multiples of 10 from numbers up to 2000

• Mental strategies - subtract multiples of 10 from numbers up to 2000
• Course: Mathematics
• Grade: Year 4
• Section: Subtraction
• Outcome: Subtracting lots of 10
• Activity Type: Printable
• Activity ID: 3948

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#### United Kingdom – National Curriculum expand/collapse

• ##### KS2.Ma2 – Number and algebra
• Knowledge, skills and understanding

• Calculations

• KS2.Ma2.3 – Pupils should be taught to:

• Number operations and the relationships between them

• KS2.Ma2.3.a – Develop further their understanding of the four number operations and the relationships between them including inverses; use the related vocabulary; choose suitable number operations to solve a given problem, and recognise similar problems to which they apply

### This activity is not included in Australia–Australian Curriculum

You can go to an overview of all the curricula here.

#### New Zealand – National Standards expand/collapse

• ##### 5.NA – Number and algebra
• 5.NA.1 – Apply additive and simple multiplicative strategies and knowledge of symmetry to:

• 5.NA.1.a – Combine or partition whole numbers

• ##### 6.NA – Number and algebra
• 6.NA.1 – Apply additive and simple multiplicative strategies flexibly to:

• 6.NA.1.a – Combine or partition whole numbers, including performing mixed operations and using addition and subtraction as inverse operations

#### United States – Common Core State Standards expand/collapse

• ##### 3.NBT – Number & Operations in Base Ten
• Mathematics

• 3.NBT.2 – Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

• ##### 4.NBT – Number & Operations in Base Ten (Grade 4 expectations in this domain are limited to whole numbers less than or equal to 1,000,000.)
• Mathematics

• 4.NBT.4 – Fluently add and subtract multi-digit whole numbers using the standard algorithm.