MISSING ADDENDS TO 20 GAMES Subtrahend 1ST 2ND GRADE Dogs

by Teacher Features

Price: 450 points or $4.5 USD

Subjects: math,mathElementary,additionAndSubtraction

Grades: 1,2

Description: Boost 1st & 2nd grade math skills with 50 animated featuring missing addend & subtrahend Boom Cards. This interactive activity adds a fun twist to mastering addition and subtraction, making it perfect for end of year math review! This resource is no prep, self-checking and gives students immediate feedback. (50 Boom Cards) 1.OA.B.3 Apply properties of operations as strategies to add and subtract. Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.) 1.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. 1.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). 2.OA.B.2 Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.