3841070
9780786836444
"Look at the math problems on the right-hand pages. Slide the red square up or down until the circle on the left matches the number and color on the page. Then slide the red square left or right until the circle along the top matches the number and color on the page. Now look in the red square for your answer."Disney Press Staff is the author of 'Magic Math Machine, Addition-Subtraction A Fun New Way To Do Math' with ISBN 9780786836444 and ISBN 078683644X.
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