Without using a calculator evaluate:
3.3 + 2.4 = 5.7
8 x 3.3 = 26.4
5.4 - 3.2 = 2.2
18.3 + 3.17 = 21.47
15.45 - 14.5 = 0.95
243 ÷ 9 = 27
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Teacher, do your students have access to computers such as tablets, iPads or Laptops? This page was really designed for projection on a whiteboard but if you really want the students to have access to it here is a concise URL for a version of this page without the comments:
However it would be better to assign one of the student interactive activities below.
Here is the URL which will take them to a related student activity.
See the National Curriculum page for links to related online activities and resources.