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### Number prompts

 Click on im for notes, resources and reports on inquiries.Calculations: multiplicationim 24 x 21 = 42 x 12  im 21 x 534 > 21 x 53 x 4 > 2 x 1534Calculations: additionim Pyramid addition inquiry Calculations: divisionim Division inquiry Calculations with decimalsim 60 x 1.2 = 60 + 12  im Multiplication and division inquiry Negative numbersim Negative numbers inquiry Place value and decimalsim Place value inquiry Prime numbersim Prime factors inquiry Factors and multiplesim Product of factors inquiryThe product of the factors of 24 equals 244.  im HCF and LCM inquiry 1The product of two numbers divided by their highest common factor is their lowest common multiple.   im HCF and LCM inquiry 2There are four pairs of integers which have a highest common factor of 6 and a lowest common multiple of 180.Fractionsim Sum and product inquiryThe sum of two fractions equals their product.   im Adding fractions inquiry im Sum of unit fractions inquiryThe sum of two unit fractions is a unit fraction.  im Fraction of a number inquiry im Fractions inequality inquiriesim Dividing fractions inquiry Mixed numbersim Mixed numbers inquiry Fractions and decimalsim Converting fractions inquiryAny fraction can be converted to a decimal and any decimal can be converted to a fraction.  im Recurring decimals inquiry The decimal equivalent of a fraction with an even denominator terminates; the decimal equivalent of a fraction with a prime denominator recurs. Percentagesim 40% of 70 = 70% of 40  im Percentage increase and decrease inquiry im Compound interest inquiryCompound interest of n% per annum for x years is greater than compound interest of x% per annum for n years.Inequalitiesim Inequalities inquiry 