Place Value Riddle Cards are a fun way to get students thinking about numbers. They are a resource for helping students understand the place value of ones and tens. They are also a useful resource for teaching the 1.NBT.2 common core standard.
This set includes 60 different cards. There are three different formats. The first format has students looking at tens and ones and determining the number. The second format has students mentally regrouping ones and adding them to the tens in order to determine the number. The third format gives students the number and has them determine the number of tens that the number has.