Price: 150 points or $1.5 USD

Subjects: math

Grades: 13,1,2

Description: CCSS K.OA.A.5, 1.OA.B.4, 1.OA.C.5, 1.OA.C.6, 2.OA.B.2 Students practice their subtraction skills with this fun and colorful deck. Ten frames with counters provide support with this skill. Audio directions provided. This deck is part of an Endless Bundle - Number Sense and Basic Computation. CCSSK.OA.A.5 Fluently add and subtract within 5. CCSS1.OA.B.4 Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8. CCSS1.OA.C.5 Relate counting to addition and subtraction (e.g., by counting on 2 to add 2). CCSS1.OA.C.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). CCSS2.OA.B.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.