Embedded Files
Add numbers with up to 3-digits.
Add numbers with up to 3-digits.
Concrete resources and pictorial images
Concrete resources and pictorial images
Add together the ones first then add the tens. Use Dienes before moving on to place value counters.
Written Calculation (Abstract)
Written Calculation (Abstract)
Expanded Horizontal Method
Expanded Vertical Method
Formal Column Method with exchanging
The exchange digit should go below the line. (This used to be known as 'carrying'.)
Year 3 National Curriculum Objectives
Year 3 National Curriculum Objectives
Add and subtract numbers mentally, including: a three-digit number and ones;
Add and subtract numbers mentally, including: a three-digit number and ones;
a three-digit number and tens; a three-digit number and hundreds
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
Add and subtract numbers with up to three digits, using formal written methods of columnar addition and subtraction
Estimate the answer to a calculation and use inverse operations to check answers
Estimate the answer to a calculation and use inverse operations to check answers
Solve problems, including missing number problems, using number facts, place value, and more complex addition and subtraction.
Solve problems, including missing number problems, using number facts, place value, and more complex addition and subtraction.
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