Estimate the sum in each of these math problems. Challenge your child to round to the nearest hundred first, then add the two rounded numbers.

How many shells did Sally sell by the seashore? Get your student in gear for math with this addition worksheet.

See if you get stumped with this math riddle! This great worksheet is full of addition problems for your student to practice.

These school-inspired math word problems will challenge your student!

Use a visual model to solve these two-digit addition problems!

Practice adding multi-digit numbers in this second- and third-grade worksheet!

Master two-digit addition with these hundred chart problems!

Use this Arctic-themed resource with your students to practice multi-step word problems with mixed operations.

By breaking down numbers, your third graders will learn to do fast addition!

Who will be the winner in Darting Decimals? Your child decides as he adds up the decimal scores and determines which team has scored the most points.

Use these cards to help students see the difference between adding three-digit numbers using the standard algorithm and expanded notation.

This math worksheet tests your child's addition and riddle-solving skills. Find out the answer to the riddle, "Which month has 28 days?"

Add like mad with our thrilling addition worksheet! This three-minute math drill gets your child racing to complete all the addition equations on the page.

Use Election Night to teach your child about politics and government, and have them add up the electoral votes each presidential candidate earns throughout the night.

What do sea monsters eat? Solve the math problems in this worksheet to reveal the answer! This math worksheets gets kids to build math and spelling skills.

The best way to solve a complicated problem is to break it down. Help your students use the Read, Write, Draw strategy to solve word problems with this worksheet.

The game requires players to solve two-step, mixed operation word problems during their turn. Similar to Connect Four, each solved problem earns the player an X or O.

If your child likes to carry, then this is the worksheet for her!

Use this glossary with the EL Support Lesson: Thinking Deeply About Word Problems.

Use this glossary with the EL Support Lesson Plan: Compare & Contrast Addition Strategies.

Children practice adding integers and decimals to the thousandths place in this practice worksheet.

Use these vocabulary cards with the EL Support Lesson: Thinking Deeply About Word Problems.

Use these vocabulary cards with the EL Support Lesson Plan: Compare & Contrast Addition Strategies.

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

In this worksheet, children use number lines to practice adding and subtracting decimals to the tenths and hundredths place.

Addition and subtraction practice can get a little repetitive, so mix it up with this funny under the sea worksheet.