Interactive Decimal Sums on the Number Line (5th Grade)

Dream Box - Decimal Sums on the Number Line. Students use a number line to add and subtract decimals and solve for a variable in a "change unknown" situation. Lesson

decimal-operations

CCSS.MATH.CONTENT.5.NBT.B.7
Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.