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Use this glossary with the EL Support Lesson Plan: Comparing Strategies for Three-Digit Addition.

Use these strategy cards to help students develop their compare and contrast skills, along with deepening their understanding of three-digit addition.

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

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

Use these vocabulary cards with the EL Support Lesson Plan: Mental Math Bingo with Multiples of 10.

Use this glossary with the EL Support Lesson Plan: Mental Math Bingo with Multiples of 10.

Introduce this graphic organizer as a way to help students think about whether or not certain rules or characteristics apply to mathematical ideas always, sometimes, or never.

Challenge your second grader with some 2-digit addition review using this addition crossword!

Help students get a grasp on mentally adding or subtracting 10 from a multiple of 10 with this fun BINGO game!

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.

Use these vocabulary cards with the EL Support Lesson Plan: Adding Within 20.

Use this glossary with the EL Support Lesson Plan: Adding Within 20.

Use this handy graphic organizer to help students figure out how many parts make up a whole. Then they'll write out their answers using a helpful number words word bank.

Give your students simple two-digit numbers to practice the decomposition addition strategy! This can be used as a stand-alone activity or in conjunction with the Composing and Decomposing lesson plan.

Give your young mathematicians practice with number bonds and number sentences in this visually interesting worksheet that has students composing and decomposing numbers.

Use this glossary with the EL Math Support Lesson: Multiples of 10.

Use these vocabulary cards with the EL Math Support Lesson: Multiples of 10.

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.

Help your student learn the relationship between addition and subtraction. He'll practice finding the inverse equations of addition problems.

Learn how addition and subtraction are related with this practice sheet. Your child will match subtraction equations with inverse addition equations.

Put your addition skills to the test with these puzzle boxes for second and third graders!

Put your addition skills to the test with these puzzle boxes for second and third graders!

Help your little math whiz learn the relationship between addition and subtraction with this practice sheet on inverse operations!

Is your little learner mastering her addition and subtraction? Help her understand the relationship between these two basic operations.

Has your little mathematician mastered double-digit addition...and subtraction? Put her mathematical prowess to the test with this worksheet duo.

Help your first and second-graders practice adding and subtracting with this holiday-inspired word problem worksheet. Use the Holiday Shopping worksheet to help your learners discuss their answers with partners as well.

Use the worksheet, Holiday Shopping 2, to help your first and second graders practice adding or subtracting word problems. Learners will answer the problems and then discuss their answers with partners to show their understanding.

In this worksheet, kids take turns rolling dice, practicing addition, and writing in numbers.

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