This week please may you all develop your addition and subtraction skills. Below are lots of Power Points which will test your skills! Addition and Subtraction Addition and Subtraction 1 714 KB Addition and Subtraction 2 630 KB Addition and Subtraction 3 560 KB Addition and Subtraction 4 444 KB Addition and Subtraction 5 671 KB Addition and Subtraction 6 414 KB Addition and Subtraction 7 482 KB Addition and Subtraction 8 588 KB