Numbers and Numeration: 42 challenging multiple choice cards or open ended questions. Students can write their answer on answer key to turn in or the teacher. After the teacher receives the student answer document, the teacher can have students check their work by using the QR code on each task card and an iPad These task cards were created in black and white to save on color printing. These challenging task cards were written to help my students gain a better understanding of numbers. Students must use the following skills be successful: Identifying the correct place value of a given digit. Determining the value of a given digit. Comparing the value of one digit to another. Writing numbers written in expanded form. Reading numbers written out in word format. Rounding to the nearest 10, 100, and 1,000. These are challenging cards and should only be used once your students have solid understanding of place value. The task cards would be perfect for reinforcement, review, test prep, and assessment. These task cards can be used whole group, or as a center activity. In addition, they can be used as a reinforcement after an objective has been taught. Laminate if possible. Another option is to print on cardstock.