## Count Ons Turn-Arounds Zero Facts

**Count-ons facts **are numbers 0 - 9 that only add +1, +2, +3. When practicing count-ons start with the largest number and count up. For example: 5+3. Say 5 and then count-on 6,7,8.

**Turn-around facts **are those facts in which the numbers are just turned around. For example 5+3=8 and 3+5=8

There are 19 **zero facts **and their turn-arounds. A zero in an addtion fact makes no change. The sum is the same as the number given. For example 8+0= 8.

## Double Facts

Doubles facts are directly related to knowing the doubles addition facts. If you know 9 + 9 = 18, then you know 18 – 9 = 9. Students are recognizing these fact families (we have also practiced them using fact triangles)

## Double Facts Song

one plus one is two

two plus two is four

…listen to me, I know more!

three plus three is six

four plus four is eight

…to hear more you are going to have to wait!

five plus five is ten

six plus six is twelve

seven plus seven is fourteen

…this should be on a movie screen!

eight plus eight is sixteen

nine plus nine is eighteen

...now you know the routine!

## Count Ups

There are 15 **count-up facts**.

**Count-ups** are any fact where the answer numbers in the fact are 1, 2 or 3 apart. When practicing **count-ups**, start with the smallest number and count up.

For example: 9-7, start with 7….say 8, 9 (counting up 2) so your answer is 2