Objective: Apply understanding of fraction equivalence to add tenths and hundredths.
Topic D brings together students’ work with addition of fractions and their work with decimals. In Lesson 12, students begin at the pictorial level, decomposing tenths using the area model and place value chart to add tenths and hundredths. They progress to using multiplication to generate equivalent fractions and express the sum in fraction form as a decimal. Students next apply what they know about fraction addition to use multiple strategies to solve sums of tenths and hundredths with totals greater than 1, again expressing the solution in decimal form.
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