This week we have been counting the Hundreds Chart.  This is a wonderful counting tool for the children during numeracy computation.  All you need to remember are a few of the rules below.

1.  (UP) Whenever you move in this direction that means you SUBTRACT 10.

2.     (DOWN) Whenever you move in this direction that means you ADD 10.

3.    (LEFT) Whenever you move in this direction that means you SUBTRACT 1.

4.   (RIGHT) Whenever you move in this direction that means you ADD 1.

We can move through the hundreds chart by breaking down numbers intotens and ones.

Example:

Put your finger on the number 25.

Now add 3. (That means you want to add 3 ones to 25, which is 3 jumps to the right)

You should end up on number 28.

Now subtract 10. (That means you want to take away 1 ten, which means you jump up one space).

You should now be on number 18.

Now add 21.  (That means you want to add 2 tens and 1 one, which means you would jump down 2 spots and to the right 1 spot).

You should now be on number 39.

See if you can do some challenges at home to help you improve your skills with adding and subtracting using the Hundreds Chart.