1. Nound off the following numbers to the nearest ten: \( \begin{array}{ll}\text { a } 2 t 187 & \text { b } 71264 \\ \text { e } 57435 & \text { d } 89861 \\ \text { e } 02377 & \text { f } 30298\end{array} \)
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To round off the numbers to the nearest ten, you look at the unit's place (the digit on the right). If it's 5 or more, you round up, and if it's 4 or less, you round down. For the numbers given: - a) 2187 rounds to **2190** (7 is 5 or more). - b) 71264 rounds to **71260** (4 is 4 or less). - c) 57435 rounds to **57440** (5 is 5 or more). - d) 89861 rounds to **89860** (1 is 4 or less). - e) 02377 rounds to **02380** (7 is 5 or more). - f) 30298 rounds to **30300** (8 is 5 or more). So, the rounded numbers are: - a) 2190 - b) 71260 - c) 57440 - d) 89860 - e) 02380 - f) 30300