0.3⋅100

Multiply 0 by 0. Place the result in the next column in the result line. There is one result line for each digit in 100.

0 | .3 | 0 | |

⨯ | 1 | 0 | 0 |

0 |

Multiply 0 by 3. Place the result in the next column in the result line. There is one result line for each digit in 100.

0 | .3 | 0 | |

⨯ | 1 | 0 | 0 |

0 | 0 |

Multiply 0 by 0. Place the result in the next column in the result line. There is one result line for each digit in 100.

0 | .3 | 0 | |

⨯ | 1 | 0 | 0 |

0 | 0 | 0 |

Multiply 0 by 0. Place the result in the next column in the result line. There is one result line for each digit in 100.

0 | .3 | 0 | |

⨯ | 1 | 0 | 0 |

0 | 0 | 0 | |

0 |

Multiply 0 by 3. Place the result in the next column in the result line. There is one result line for each digit in 100.

0 | .3 | 0 | |

⨯ | 1 | 0 | 0 |

0 | 0 | 0 | |

0 | 0 |

0 | .3 | 0 | |

⨯ | 1 | 0 | 0 |

0 | 0 | 0 | |

0 | 0 | 0 |

Multiply 1 by 0. Place the result in the next column in the result line. There is one result line for each digit in 100.

0 | .3 | 0 | |

⨯ | 1 | 0 | 0 |

0 | 0 | 0 | |

0 | 0 | 0 | |

0 |

Multiply 1 by 3. Place the result in the next column in the result line. There is one result line for each digit in 100.

0 | .3 | 0 | |

⨯ | 1 | 0 | 0 |

0 | 0 | 0 | |

0 | 0 | 0 | |

3 | 0 |

Multiply 1 by 0. Place the result in the next column in the result line. There is one result line for each digit in 100.

0 | .3 | 0 | ||

⨯ | 1 | 0 | 0 | |

0 | 0 | 0 | ||

0 | 0 | 0 | ||

0 | 3 | 0 |

Add the numbers in each column. In this case, add 0+0+0, then place the 0 in the result line.

0 | .3 | 0 | ||

⨯ | 1 | 0 | 0 | |

0 | 0 | 0 | ||

0 | 0 | 0 | ||

0 | 3 | 0 | ||

0 |

Add the numbers in each column. In this case, add 0+0+0, then place the 0 in the result line.

0 | .3 | 0 | ||

⨯ | 1 | 0 | 0 | |

0 | 0 | 0 | ||

0 | 0 | 0 | ||

0 | 3 | 0 | ||

0 | 0 |

Add the numbers in each column. In this case, add 0+0+0, then place the 0 in the result line.

0 | .3 | 0 | ||

⨯ | 1 | 0 | 0 | |

0 | 0 | 0 | ||

0 | 0 | 0 | ||

0 | 3 | 0 | ||

0 | 0 | 0 |

Add the numbers in each column. In this case, add 0+0+3, then place the 3 in the result line.

0 | .3 | 0 | ||

⨯ | 1 | 0 | 0 | |

0 | 0 | 0 | ||

0 | 0 | 0 | ||

0 | 3 | 0 | ||

3 | 0 | 0 | 0 |

0 | .3 | 0 | ||

⨯ | 1 | 0 | 0 | |

0 | 0 | 0 | ||

0 | 0 | 0 | ||

0 | 3 | 0 | ||

3 | 0 | 0 | 0 |

To find the number of decimal places needed in the answer, add the number of decimal places in the multiplier and multiplicand. In this case, there is a total of 2, so the answer must have 2 decimal places as well.

30

Evaluate 0.30*100