Little world math concepts

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Matzke, Ann H Allen, Nancy Kelly Merideth, Susan Mattern, Joanne Allen, Nancy Meredith, Susan Duke, Shirley
 
1)  Can you guess?
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4)  Is it symmetrical?
5)  Left or right
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8)  Plus 0, minus 0
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11)  Sequence it!
12)  What is an attribute?
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15)  My math toolbox
16)  What's a fraction?
17)  Who's right, addition or multiplication?