Use these 120-chart mystery pictures to address the common core standards 1.NBT.1 and 1.NBT.5. Your children will have to wrap their minds around the concepts of one more, one less, ten more, and ten less to complete the mystery pictures. After working your way through the braintwisters, give your children a little quiz using the enclosed worksheet.
In this download, you receive:
*A reproducible 120 chart to use with each braintwister
*A direction anchor chart to post for reminding the children what each arrow means.
*5 different sets of directions for completing the pictures
*5 pictures of completed samples to use as answer keys
*a follow-up worksheet