If You Were a Minus Sign - Shaskan, Trisha Speed

If you were a minus sign, you would subtract one number from another. You could subtract food and balloons. In every problem, you would find the difference. What else could you do if you were a minus sign?

If You Were a Minus Sign 2008, Picture Window Books, Minneapolis, MN

ISBN-13: 9781404847880

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If You Were a Minus Sign 2008, Picture Window Books, Minneapolis, MN

ISBN-13: 9781404847873

Hardcover

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