Help your students apply strategies when solving addition problems. This worksheet provides practice for using number lines to solve addition problems with three-digit numbers.

With this worksheet students will practice using the number line strategy to add three-digit numbers.

Adding up big numbers can be tricky. Teach your budding mathematician a helpful trick to keep the numbers in line with carrying!

Go on a number adventure with this jungle-themed worksheet. Kids will use their number know-how to order numbers and clear a path through the jungle.

Once your child masters addition with carrying, there's practically no number too big for her to add!

What does carrying have to do with math? Help your second grader find out with this worksheet full of big number addition and carrying hints.

Practice two-and three-digit subtraction in this set of school-themed word problems!