4.NBT.1. Recognize that in a multi-digit whole number, a digit in one place represents ten times what it represents in the place to its right. For example, recognize that 700 ├À 70 = 10 by applying concepts of place value and division.
Find the missing number to balance the calculations. An excellent tool for reinforcing an understanding of the role of the equals sign. Choose one objective, or many. You can choose all the objectives for a single year group (or multiple year groups). You can also choose to balance between different types of calculations (eg subtraction and division)
|ITP Moving Digits||
View full screen in your browser. This ITP allows you to demonstrate the effect of multiplying and dividing by 10 and 100. By dragging cards from the set of digit cards, different decimal numbers can be displayed. These decimal numbers can be placed in either of the two middle rows. The cards in the first row move when the multiply or divide buttons are selected. The cards will not move if the result is greater than 99 999 or less than 0.01. The cards in the second row do not move in order to highlight the shift in the digits when multiplying or dividing.
This resource is freely available to download from the archived Primary Framework site.
|Multiply and Divide by 10, 100 and 1000 (1)||
Multiply and divide numbers by 10, 100 and 1000 and observe the effect. Lots of choice of level including decimals.
|Multiply and Divide by 10, 100 and 1000 (2)||
Decide which function has been applied to a number. Reinforces the effects of multiplying and dividing by 10, 100 and 1000.