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...Activity 1 Round the numbers below: (a) to the nearest 10. (b) to the nearest 100. (c) to the nearest 1000. 325 089, 45 982, 11 985 Answer (a) 325 090, 45 980, 11 990 (b) 325 100, 46 000, 12 000 (c) 325 000, 46 000, 12 000 Activity 2 Some of the entries in the following table are incorrect. Identify the errors and write down the correct rounding. ROUNDED TO NEAREST NUMBER 10 100 1000 254 987 254 980 254 990 ......

...numbers in weather reports where a temperature is below freezing, for example –2°C, or you may have seen them on frozen food packets. If you ever have an overdraft at the bank, you may see minus signs next to the figures. If a bank statement reads –£30, for example, this tells you how much you’re overdrawn. In other words, what you owe the bank! Where have you seen negative numbers recently? Look at this thermometer: ......