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

Ask your second grader to help out Ken the Carpenter, and his double-digit addition skills will get a boost, too!

Get more practice adding multiples of 10 on an open number line with this colorful worksheet!

Get more practice adding multiples of 10 on an open number line with this vibrant worksheet!