Students will use this lesson to practice and review the rules of adding and subtracting mixed numbers.

This short video and interactive assessment activity is designed to teach fifth graders about adding and subtracting mixed numbers - word problems.

This short video and interactive assessment activity is designed to teach fifth graders about adding and subtracting money with pictures in columns.

This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting money using words.

This short video and interactive assessment activity is designed to teach fifth graders about adding and subtracting money using words.

This short video and interactive assessment activity is designed to teach third graders an overview of mixed operations.

This short video and interactive assessment activity is designed to teach second graders about mixed operations: addition and subtraction i - word problems.

This short video and interactive assessment activity is designed to teach fourth graders about adding or subtracting lengths in one step (english units).

This short video and interactive assessment activity is designed to teach second graders about adding or subtracting lengths in one step.

This short video and interactive assessment activity is designed to teach second graders about adding and subtracting (numbers up to 20) - word problems.

This short video and interactive assessment activity is designed to teach fourth graders about adding of compound units of length (english units).

This short video and interactive assessment activity is designed to teach fourth graders about adding and subtracting fractions - word problems.

This short video and interactive assessment activity is designed to teach fifth graders about adding and subtracting fractions with different denominators.

This short video and interactive assessment activity is designed to teach fourth graders about adding 3 numbers - word problems.

This short video and interactive assessment activity is designed to teach fourth graders about adding capacities in compound units (english units).

This short video and interactive assessment activity is designed to teach fourth graders about adding decimals - word problems.

This short video and interactive assessment activity is designed to teach fifth graders about adding fractions with different denominators.

Adult Learners will review the previous lesson, measuring with a thermometer, to continue their application in horizontal number lines. Learners will use the number line to increase their understanding of integer values as well as apply their understanding to solving real world problems.

This short video and interactive assessment activity is designed to teach fifth graders about adding mixed numbers with common denominators.

This short video and interactive assessment activity is designed to teach fifth graders about adding, subtracting, multiplying and dividing.