Osweiller, Regina <br/><br/>
Operations with whole numbers / 
Regina Osweiller. 
 - Chicago, Ill. :  World Book,  2023. 
 - 40 pages :  col. ill.;  26 cm. 
 - Building blocks of math. .
<br/><br/><label>ISBN: </label>978-0-71664260-2 
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<br/><br/><label>Dewey Class. No.: </label>Ref. 513.21 Os86 2023