Curated OER
Number Sense
First graders practice rounding 4 digit numbers using place value concepts. In this estimating sums and differences instructional activity, 1st graders explore clustering, rounding, and front end estimation as methods for rounding decimals.
Curated OER
Place Value Popsicles
Students play a place value game using popsicle sticks and dice. They investigate units and tens.
Curated OER
Addition - Three 1-Digit Numbers
For this addition practice worksheet, students practice their computation skills as they solve 30 problems that require them to add 1-digit numbers. Each problem has 3 addends.