Unit 5, Lesson 1
Relate 10 more, 10 less, 100 more, and 100 less to addition and subtraction of 10 and 100
EngageNY 60 min(s)
In this lesson, students apply knowledge of place value to add and subtract numbers up to 1,000. Using sentence frames and place-value disks, they relate 100 more, 100 less, 10 more, and 10 less to addition and subtraction. For example, 290 - 100 is 2 hundreds 9 tens minus 1 hundred. Students record the addition and subtraction of multiples of 100 using arrow notation
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