After kids solve the two-digit addition and subtraction problems on this second grade math mosaic, they use the key to color in the shapes.

Math whizzes can learn to estimate sums quickly using front-end estimation! Round to the highest place value and then add or subtract the rounded numbers.

Get practice balancing addition and subtraction equations with this lower grades math worksheet!

Get more practice balancing addition and subtraction equations with this lower grades math worksheet!

Get even more fun practice balancing addition and subtraction equations with this lower grades math worksheet!