Autumn 2 2017-18 - Maths No Problem Year Group: Year 5 Knowledge Organiser

Multiplication –Multiples, Factors & Prime Numbers (cont’d)NC Link Know and use the vocabulary of prime numbers, prime factors and composite (non-prime) numbers. Identify multiples and

factors, including finding all factor pairs of a number, and common factors of two numbers.Important Vocabulary

Least common multiple, factors, prime, composite, factorisation, repeated multiplication, express, even, odd

Key facts to memorise

Strategies

Autumn 2017-18 - Maths No Problem Year Group: Year 5 Knowledge Organiser

Multiplication & DivisionNC Link Multiply and divide whole numbers and those involving decimals by 10, 100 and 1000. Multiply and divide numbers

mentally drawing upon known facts.Important Vocabulary

Lots of, groups of, multiply, times, table, product, method strategy, portioning, tables, multiples, factors pairs, inverse, share, divide, discs, tens, hundreds, thousands, expression,

Key facts to memorise

Timetables up to 12x

Strategies

Strategies

Autumn 2017-18 - Maths No Problem Year Group: Year 5 Knowledge Organiser

Word ProblemsNC Link Multiply numbers up to 4 digits by a 1- or 2-digit number using a formal written method, including long multiplication for

2-digit numbers.Important Vocabulary

Value, worth, discount, currency, how much?... , how many?... , total, amount, costs less, less expensive, least expensive, cheaper, cost more, more expensive, most expensive, cheap, spent, buy, change, dear, bought, sell, sold, spend, pound, cost, price, pay, note, pence, penny, symbol, equation, money, coin, sign, operation, number sentence, how did it work best?, right, wrong, correct, what could we try next? , answer, method, mental calculation, estimation, calculate, calculation, puzzle…

Key facts to memorise

When working out what to do with a word problem – Read the word problem. Consider what the problem is asking you to calculate and the method(s). Consider what outcome is required.