by Kiki's Kubby © 2021
Price: $2 USD
Subjects: math
Grades: 1,2,3
Students will click yes or no to answer the question, "Do you need to regroup?" They will then find the sum of three 2-digit numbers. CCSS.MATH.CONTENT.2.NBT.B.5 Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction. CCSS.MATH.CONTENT.2.NBT.B.6 Add up to four two-digit numbers using strategies based on place value and properties of operations. CCSS.MATH.CONTENT.2.NBT.B.9 Explain why addition and subtraction strategies work, using place value and the properties of operations.1
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