Unit 2, Lesson 15# The Division Algorithm--Converting Decimal Division into Whole Number Division Using Mental Math

EngageNY 45 min(s)

Students use mental math and their knowledge of dividing multi-digit numbers to solve for quotients of multi-digit decimals. Students understand the mathematical concept of decimal placement in the divisor and the dividend and its connection to multiplying by powers of 10. Students have utilized mental math techniques in previous grade levels. Mental math techniques aid in efficient computation and application of number sense.