In Cross Number Puzzles Grades 4-6, you will find 60 cross number puzzles that align with Common Core State Standards. The cross number puzzles are great math review sheets that increase in difficulty throughout the set. These puzzles are great for review, homework, small group work, math rotations, intervention or early finishers that will align with standards for math practice in your classroom!Cross Number Puzzles Grade 4 Skills:• place value using base 10 numerals, expanded form and number n