Curated OER
Counting in Ten's and Two's
In this counting worksheet, students complete activities, first counting in ten's, then two's. Students give numbers that are 10 more or less, 2 more or less, circle and write numbers that = 10 and solve number problems.
Curated OER
Mentally Add Larger Numbers
Using what they know about adding 10s and 100s, learners attempt to mentally solve 18 addition problems. Each problem requires them to think of the nearest 10 or 100, add them together, then add the remaining units.