Perfect for Practice: Improve your child’s math skills in single number problems; Each of our easy-to-follow adding and subtracting flashcards has 6 addition and subtraction exercises to solve, for a total of 312 problems, with lined up blocks to help kids organize their calculation Easy to Teach: The color-coded adding and subtracting 1st Grade math flashcards keep things organized for simple teaching, problem-solving, and learning, and to guide better penmanship; Children will learn to align their answers, as well as form legible numbers Dry Erase Cards: Children can write and erase without the kids math flash cards being easily torn; This helps them to line up numbers correctly, and to keep them in the right columns to achieve the correct answers; Proper vertical alignment equals better accuracy Improve Math Penmanship: Alignment is a common cause for incorrectly formulated problems; Channie’s subtraction and addition flash cards keep numbers legible, helping your children arrive at the right answer that the teacher can read easily; This means better success in school 1 Card at a Time: One Card a Day was created by a concerned mom to address the messy number alignment issue; With these flashcards, addition and subtraction daily practice is fun for preschoolers and PreK-1st grade kids Basic single-digit math can be difficult for some children when they are first introduced to it. Not only are the processes of addition and subtraction confusing in the beginning, but the organization of the numbers can also be difficult for a child. Channie’s One Card a Day Kit was created by a concerned mom to address the messy number alignment issue. These addition and subtraction flashcards size 5.5W x 4.25 L, for children, are the perfect learning tool for preschool and PreK-1st grade kids. Each One Card a Day Pre-K and 1st Grade Flash Cards Pack includes 1 blank card, 1 answer card, plus the following sections: Section 1: Addition 0-5 w/6 cards & 72 problems. Section 2: Addition 6-9 w/5 cards & 60 problems. Section 3: Subtraction 0-5 w/5 cards & 60 problems. Section 4: Subtraction 6-9 w/5 cards & 60 problems. Section 5: Mixed w/5 cards & 60 problems. The flashcard colors keep things organized for simple teaching, problem-solving, and learning, and to guide better penmanship. Plus, the lined-up blocks teach children how to organize their calculations.