When you multiply decimals by integers (whole numbers), you can use everything you already know about multiplying multi-digit numbers. You can use written or mental methods to multiply decimals by ...

Start with \(4\times7\), which is \(28\), so write the \(8\) and carry the \(2\) to the tens column. \(4 \times 3 = 12\), but remember to add the carried \(2\) to get ...