Document Two- and Three-Digit Measurement Addition Using the Standard Algorithm icon
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Two- and Three-Digit Measurement Addition Using the Standard Algorithm

EngageNY

Supporting grades: 3

Description: In Topic D, students revisit the standard algorithm for addition, which was first introduced in Grade 2. In this topic, they add two- and three-digit metric measurements and intervals of minutes within 1 hour. Lesson 15 guides students to apply the place value concepts they practiced with rounding to model composing larger units once on the place value chart. Lesson 16 adds complexity to the previous day's learning by presenting problems that require students to compose larger units twice. Again, students begin by modeling on the place value chart, this time renaming both the ones and tens places. Lesson 17 culminates the topic with applying addition involving renaming to solving measurement word problems.

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