# Maths

Bridging Ten

10/10/16

This week we have been teaching the children to add a single digit number to another number by bridging ten. This is an essential skill later on in maths and helps quick addition of number mentally.

Before they can bridge ten, the children need to know their number bonds to ten e.g. 1+9, 2+8, 3+7, 5+5,  6+4 etc.

You also need to know how other numbers are made e.g. 6  0 + 6,  1 + 5, 3 + 3, 2 + 4, etc.

Here is a clip we used in class. When you bridge ten you use the numbers to make ten first and then add the remaining number.

e.g. 9 + 8 = 9 + 1 + 7= 17  because 9 + 1 = 10     8 - 1 = 7  so 10 +7 = 17

Please come in and ask if you are unsure or would like more information. All the children are encouraged to use Cuisenaire, and the challenge is to be able to draw a number line, as shown in the video clip.

We began with numbers such as 9+8=  and 7+6 =

Once children grasped the idea, we then moved onto other numbers  19 + 8 =   17 + 6 =   or 59 + 8 =  37 + 6 =

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