WorksheetFoundry

Grade 1 Addition Worksheets

Grade 1 is the fact-strategy year: counting on, plus-one and plus-two, and the make-ten facts inside 20. The sheets below isolate each strategy so practice matches what was taught, and the missing-number page checks that equations mean something — not just that facts can be recited.

Addition Within 20

1.2+72.6+103.3+54.6+45.3+66.7+97.4+28.9+59.5+1010.9+211.2+312.2+413.9+814.8+215.10+416.2+817.8+618.1+119.2+620.10+821.1+622.9+423.6+824.6+1
Show answer key
1.2+792.6+10163.3+584.6+4105.3+696.7+9167.4+268.9+5149.5+101510.9+21111.2+3512.2+4613.9+81714.8+21015.10+41416.2+81017.8+61418.1+1219.2+6820.10+81821.1+6722.9+41323.6+81424.6+17
Open this sheet

More addition sheets

Need different numbers?

The Addition Worksheet Generator regenerates this topic with your own ranges, count and layout — same printable quality, same answer key, and a link you can save.

Other Grade 1 topics

Common Core alignment © Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.