These equations have lost their signs! Only one sign — plus or minus — can make each equation true.

Let’s see how well you know your addition facts!

Sharpen second graders' hundred chart know-how with this addition worksheet!

Tristan had 74¢ and Juniper gave him a quarter. How much does he have now? Kids will practice identifying coins and using the part-part-whole concept (number bonds) to solve money word problems in this two-digit addition worksheet.

Help Santa color his gifts. With some math know-how and a few festive crayons, your child just might save Christmas.

Did you know that multiplying a number by two is the same thing as adding that number to itself? Use this trick in this lovely math worksheet.

Know a second grader who could use stronger math skills? Give her a helping hand with this super power-infused, two-digit addition worksheet.

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.

Do your students know how to solve word problems without a given operation? This mixed operation assessment can help you gauge student understanding of two-digit subtraction and addition word problems.

Use this colorful, open-ended worksheet to help your learners understand the value of 100.

Children make the connection between addition and multiplication in this repeated groups worksheet.

Give your second grader a little extra practice with double digit addition. Let the beautiful bugs dancing around this worksheet help her to success!

Kids practice reverse addition and subtraction to find the missing numbers in this challenging 2nd grade math worksheet.

Swing through the trees like Tarzan! Count by 12 as you swing from tree to tree, a great way to learn the basics of multiplication.

Don't get spooked out by math! These Halloween word problems bring some scary fun to your math exercises.

Add some color to these Christmas presents in this color-by-number mental math worksheet. Kids will exercise addition and subtraction skills.

With the help of this printable's adorable bee embellishments, your second grader will simply "buzz" through the fresh math concept of addition with carrying!

Your young learner can have a blast experimenting with addition facts in the Math Lab!

Your child can exercise addition and subtraction skills at Christmas time with this mental math worksheet. It also includes a bonus coloring exercise.

Practice addition while solving number puzzles in this engaging worksheet for first and second graders!

Use this worksheet to practice describing an array with repeated addition. Kids will practice writing number sentences for arrays before applying their knowledge to array word problems.

After completing some difficult double-digit addition, your second grader will be delighted to move onto some creative coloring!

Jump forward and backward on a number line to solve addition problems in this engaging worksheet!