Want a whole host of addition word problems for KS1? Want them to be differentiated too so that your whole class can involved? Of course, you do or you wouldn't be skulking around this KS1 Reasoning Addition Word Problems Test Practice web-page now, would you? This cracker has been differentiated six ways, from the more accessible end of Year 1 to the soaring heights of the top of Year 2, and focuses on a number of objectives, including: solve one-step addition problems with numbers up to 20, without bridging 10 where we add 2-digit to 1-digit numbers.