Grade 1 Math worksheet for counting and estimating using number lines to solve addition problems.
Grade 1 Math worksheet titled "Counting and Estimating" featuring number lines for addition problems, with an example showing 10 + 2 = 12. Includes four addition exercises (8 + 7, 6 + 6, 12 + 3, 10 + 4) to be solved using number lines. The worksheet is from Grade1to6.com, designed for PYP, CBSE, NCERT, Common Core, KS1, and other international curricula.