
Mental and Column Addition and Subtraction
Free Year 3 addition and subtraction worksheet: mental maths, column method, inverse checks and missing numbers, all with answer keys.
Adding and subtracting numbers mentally, including a three-digit number and ones, tens or hundreds, alongside written column methods.

Free Year 3 addition and subtraction worksheet: mental maths, column method, inverse checks and missing numbers, all with answer keys.

Free Year 3 mental addition and subtraction starter: quick-fire questions, number chains and a strategy explanation. Answers included.

Free Year 3 worksheet on estimating answers and checking with inverse operations: an 11-gap cloze story plus writing questions. Answers included.

Free Year 3 column subtraction worksheet: no exchanging, exchanging, subtracting through zero and spot-the-mistake. Answer key included.

Free Year 3 column addition worksheet with 32 questions, from no exchanging to double exchanges and missing digits. Answer key included.

Free Year 3 word problems using three-digit addition and subtraction, set at a school fair. Worked solutions included.
Number — addition and subtraction
“Add and subtract numbers mentally, including: a three-digit number and ones”
Number — addition and subtraction
“Add and subtract numbers with up to three digits, using formal written methods of columnar addition and subtraction”
Number — addition and subtraction
“Solve problems, including missing number problems, using number facts, place value, and more complex addition and subtraction.”
Number — addition and subtraction
“Add and subtract numbers mentally, including: a three-digit number and tens”
Number — addition and subtraction
“Add and subtract numbers mentally, including: a three-digit number and hundreds”
Number — addition and subtraction
“Estimate the answer to a calculation and use inverse operations to check answers”
Number — addition and subtraction
“Solve problems, including missing number problems, using number facts, place value, and more complex addition and subtraction”
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Comparing and ordering numbers up to 1,000, and reading, writing and representing three-digit numbers in different ways.

Recalling and using multiplication and division facts for the 3, 4 and 8 multiplication tables.

Solving problems that draw the Year 3 fractions objectives together, from recognising tenths to comparing fractions with the same denominator.

Measuring, comparing, adding and subtracting lengths (m, cm, mm), mass (kg, g) and volume or capacity (l, ml).

Recognising angles as a property of shape or a description of a turn, including identifying right angles.

Interpreting and presenting data using bar charts, pictograms and tables, and answering one-step and two-step questions about the data.