This section deals with the revision of addition and subtraction of both whole numbers and decimals; we also look again at the use of brackets. You are *not* expected to use a calculator in this section.

Calculate:

(a) | 1142 + 363 | |

(b) | 4478 – 227 |

Note that it is important to *line up* the numbers with the *same place value*.

Calculate:

Remember to carry out the calculations in the *brackets first*.

(a) | 14 – (8 + 3) | |

(b) | 16 – (12 – 3) |

Calculate:

Remember to *line up* the decimal points.

(a) | 6.27 + 13.4 | |

(b) | 17.6 – 8.31 |

Ben has £17.50 when he goes out shopping. He spends £1.23 on sweets and £12.99 on a CD.

(a) | How much does he spend in total? | |

(b) | How much money does he have left? |

Work out the answers to the questions below and fill in the boxes. Click on the
button to find out whether you have answered correctly. If you are right then
will appear and you should move on to the next question. If
appears then your answer is wrong. Click on
to clear your original answer and have another go. If you can't work out the right answer then click on
to see the answer.