Welcome to SOUTH AMERICA Year 5. To start your journey, just click on the links below. Double any 2 digit number Click here Half any 2 digit number Click here Know the factor pairs of all times table answers up to 12 x 12 Click here Count in multiples of 50 Click here Multiply or divide a number by 10, 100, 1000 including Decimals Click here Multiply and divide mentally drawing upon known facts (making links) Click here Know by heart the squares of numbers between 1 and 12 and squares of multiples of 10 Click here Know number bonds to 100 for numbers with one decimal place Click here Recall prime numbers up to 19 Click here Multiply pairs of multiples of 10 and 100 (e.g. 30 x 70) Click here Know percentage and decimal equivalents of 1/2, 1/4, 1/5, 2/5, 4/5 and those with a denominator of a multiple of 10 or 25 Click here