In these First Grade math worksheets, students practice adding whole tens (or multiple of tens). There are 2 addends which are not more than 100. Students can use pictures (base ten blocks) to do that, or they work with the number of tens the same way as adding single-digit numbers. For example, 60 + 20 becomes 6 tens + 2 tens, which is 8 tens. (60 + 20 = 80)
Have a look at this video if you need to learn how to quickly add tens and subtract tens using a shortcut.
Click on the following worksheet to get a printable pdf document.
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