Numbers crib sheet

Arithmetic tricks via semi-algebra Binary, Hex and other bases Measurement errors Upper and lower bounds Fractions Learn your squares and cubes Long multiplication Percentages Prime factorization, HCF, LCM Ratio & proportion Standard form Types of number Why primes are interesting Magic squares Fibonacci & the Golden Ratio

Classify the number quiz

First million primes First 55 million primes

Prime factors 2-99999 Prime factors 100000-199999

xls

grid multiplication