TEKS+5.3A

Ⓡ MATH.5.3A Use addition and subtraction to solve problems involving decimals using a variety of strategies. ** Background Knowledge for Teacher ** This is the students’ first experience to symbolically add and subtract decimals. Begin instruction with concrete models and pictorial representations while labeling the representations with the symbolic decimal numbers. ** Students should be able to: ** • Model sets of tenths, hundredths, and thousandths using concrete objects (Base-ten blocks, thousandths grids, hundredths grids) for decimals. • Describe and compare the decimal built using tenths, hundredths, and thousandths vocabulary. • Name decimals in a variety of ways • Read and write decimals in standard, expanded, and written forms. • Describe the relationship between decimals and real world applications. • Model addition and subtraction of decimals using real world context. • Solve multi-step word problems involving addition and subtraction of decimals.

2009 TAKS Released 28 Sarah and Jen participated in the Frisbee toss on field day. Sarah threw the Frisbee 30.95 meters. Jen threw the Frisbee 39.31 meters. How much farther did Jen throw the Frisbee than Sarah?

2011 STAAR Released Adam is 4.5 feet tall. He is 0.75 foot taller than his brother Mark. How tall is Mark? Click below to see video of using the bar method to solve sample problem below. media type="custom" key="13406648" align="center"

Sample Problem: Samantha bought .72 pounds of cherries and James bought .49 pounds of cherries. How many more pounds of cherries did Samantha buy than James?