These Puzzles for Proficiency reinforce key place value concepts up to 120 aligned to the 1st grade Common Core Standards (1.NBT.B.2, 1.NBT.B.2a, 1.NBT.B.2b, 1.NBT.B.2c, 1.NBT.B.3). The resource includes 32 puzzles - more than a complete class set! Each puzzle contains 2 pieces - one piece has the standard numeral, the other piece has the numeral represented with place value blocks. This set decomposes the numbers in non standard ways so not all of the ones have been traded for tens. This pr