Hot Dots® Flash Cards - Subtraction

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Product Number: SN00025

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$9.30

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For your Common Core curriculum.

With the power of Hot Dots® technology, ordinary flash cards are transformed into individualized basic skills tutors. Use like regular flash cards, or add the Hot Dots® pen and students can drill independently with Hot Dots® instant reinforcement! Students touch the pen on the correct answer and get a positive response. The plastic storage case also makes these great send-home helpers.

CCSS Product Alignment

1.OA.4 Understand subtraction as an unknown-addend problem. For example, subtract 10 - 8 by finding the number that makes 10 when added to 8.

1.OA.6 Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on, making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14), decomposing a number leading to a ten (e.g., 13 = 4 = 13 = 3 = 1 = 10 = 1 = 9), using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 = 8 = 4), and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).

2.OA.2 Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.

2.NBT.5 Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

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Item Weight: 0.63
Assembly Required: false
Subject Areas: Arithmetic
Brand: Educational Insights
Prop 65:
 

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