Addition up to 20 practice

Addition sums

Practice addition up to 20

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Practice addition sums up to 20 here. You can set the number of sums and the number of seconds you want to be given for each sum. The addition sums up to 20 are part of second-grade arithmetic. Some example sums are: 7 + 12 = 19 6 + 11 = 17 By lowering the number of seconds for each exercise, it becomes more difficult to give the right answer. This way you can slowly increase the difficulty level. By completing the sums with a timer, it will help you practice for a timed test. You can also choose longer series of sums to do more exercises in a row.