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Subtract with 2-digit numbers and ones, 2-digit numbers and tens and pairs of 2-digit numbers.
Subtract with 2-digit numbers and ones, 2-digit numbers and tens and pairs of 2-digit numbers.
Concrete resources and pictorial images
Concrete resources and pictorial images
Partition the second number and subtract it in tens and ones.
e.g. 47 - 23 = 24
Teaching children to bridge through ten can help children to become more efficient.
Use basic bar models with items to find the difference.
Written Calculation (Abstract)
Written Calculation (Abstract)
Year 2 National Curriculum Objectives
Year 2 National Curriculum Objectives
Solve problems with addition and subtraction:
Solve problems with addition and subtraction:
- using concrete objects and pictorial representations, including those involving numbers, quantities and measures
- applying their increasing knowledge of mental and written methods
- recall and use addition and subtraction facts to 20 fluently, and derive and use related facts up to 100
Add and subtract numbers using concrete objects, pictorial representations, and mentally, including:
Add and subtract numbers using concrete objects, pictorial representations, and mentally, including:
- a two-digit number and ones
- a two-digit number and tens
- two two-digit numbers
- adding three one-digit numbers
Show that addition of two numbers can be done in any order (commutative) and subtraction of one number from another cannot.
Show that addition of two numbers can be done in any order (commutative) and subtraction of one number from another cannot.
Recognise and use the inverse relationship between addition and subtraction and use this to check calculations and solve missing number problems.
Recognise and use the inverse relationship between addition and subtraction and use this to check calculations and solve missing number problems.
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