Counting on and back

04.16.2020
11:19:50


[size=34]Counting on is another way of addition that you need number line. You can add the numbers in any order. You always get the same answer. But it is faster to count on from the larger number.[/size]

[size=34]Work out the missing numbers using number lines [/size]
[size=34]On pages 139 and 141[/size]