2-Digit Addition (With Regrouping). The double-digit addition worksheets on this page require student to carry ones, or regroup. Includes graph paper math, a Scoot! game, and word problem worksheets. Approx. levels: 1st grade, 2nd grade.
Simple Algebraic Expressions. Evaluate each expression; Substitute numbers for variables to solve. 5th through 7th Grades.
4 and 5-Digit Addition. This page has resources for teaching addition with 4 and 5-digit numbers. Includes column addition exercises, an addition crossword, and word problems. (Approx. level: 3rd grade, 4th grade, 5th grade).
Decimal Addition & Subtraction. Find sums and differences for pairs of decimals on these worksheets. These practice pages have decimals in tenths, hundredths, and thousandths.