Understand the effect of and relationships between the four operations, and the principles (not the names) of the arithmetic laws as they apply to multiplication.
Use doubling or halving, starting from known facts. For example: double/halve any two-digit number by doubling/ halving the tens first; double one number and halve the other; to multiply by 25, multiply by 100 then divide by 4; find the 16 times table facts by doubling the 8 times table; find sixths by halving thirds.
Approximate first. Use informal pencil and paper methods to support, record or explain multiplications and divisions. Extend written methods to short multiplication of HTU or U.t by U.
Y5 Autumn - Unit 2 Multiplication and division 1 (PDF 55Kb)
Y5 Autumn - Unit 2 Multiplication and division 1 (WORD 173Kb)