In this addition and subtraction worksheet, children will provide the missing numbers to balance ten expressions.

This activity will help students reflect on the many potential combinations for a number as they work on identifying a missing part of a whole using dots and a word bank.

Complete the number sentence by counting left and right on a number line. Can your child find all the missing numbers?

Count like a champ! Your kid will find missing numbers in no time when he learns how to use a number line. Now get searching!

Your child will enjoy cutting and pasting while solving problems to fill in the missing information.

Practice finding missing numbers while adding within 20 using ten frames!

One way to find the missing number in an equation is to use a number line. Your kid will do just that in this set of addition problems.

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

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

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

Introduce your child to basic algebra with this 2nd grade math worksheet. Kids practice reverse addition or subtraction to find the missing numbers.

Kids get an intro to basic algebra by practicing reverse addition and subtraction to find the missing numbers in this challenging 2nd grade math worksheet.

Kids try their hand at reverse addition and subtraction in order to find the numbers missing from each equation in this 2nd grade math worksheet.

Introduce your child to basic algebra with this 2nd grade math worksheet in which he'll practice reverse addition and subtraction to find the missing numbers.

Kids get a taste of basic algebra in this 2nd grade math worksheet. Kids flip the equations and reverse the operations in order to find the missing number.

Use your addition expertise to find the missing digits in each equation with this second- and third-grade worksheet!

Test your addition knowledge in this charming worksheet!

Gain expertise with addition sentences within 20 in this helpful math worksheet!

Switch up your addition practice with this engaging first-grade worksheet!

Explore finding missing starting numbers in addition equations with this engaging hundred-chart worksheet!

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

Kids love it when things are fair! Help students make equal groups of toys while exploring how the equals sign means “the same as.” Students will draw the missing objects and write the missing factors to balance the equations.