![]() The ITP can be used to refine children’s understanding of the decimal number system and to practise and develop their estimation skills. The square ‘show numbers’ button will reveal or hide the numbers above the divisions in the interval. Clicking on the circular ‘hide/show’ button will reveal the ten equal divisions between the two selected numbers of the interval. The maximum and minimum values on the number lines can be altered and the numbered intervals can be hidden and revealed.Ĭlicking on the hidden buttons below the number line creates an interval displayed as a hidden number line. You can hide and reveal the numbers in the boxes, which will also hide and reveal the respective numbers in the calculation. Depending on the order of the two markers you can show the sum and difference between the two numbers and the calculation represented. Two markers with numbered boxes can be moved along the number line. This ITP has been remade so that it will work in modern browsers. The ITP can also be used to demonstrate the effect of repeated multiplication and division by 10.įor more multiplication and division resources click here. The ITP can be used to explore, and to encourage children to predict the effect of multiplying and dividing by 10 and 100. The cards in the second row do not move in order to highlight the shift in the digits when multiplying or dividing. The cards will not move if the result is greater than 99 999 or less than 0.01. The cards in the first row move when the multiply or divide buttons are selected. These decimal numbers can be placed in either of the two middle rows. ![]() By dragging cards from the set of digit cards, different decimal numbers can be displayed. This ITP allows you to demonstrate the effect of multiplying and dividing by 10 and 100. They will remain freely available to all without the need for a subscription. I am remaking the ITPs so that they will work on all modern browsers and tablets.
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