Plus 1, Minus 1
| By: | Ann Matzke |
| Publisher: | Encyclopaedia Britannica, Inc. |
| Print ISBN: | 9781625138606 |
| eText ISBN: | 9781625138606 |
| Edition: | 1 |
| Copyright: | 2020 |
| Format: | Reflowable |
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Updated for 2020, this math concept book engages young readers through simple text and photos as they learn how groups change when you add 1 or take away 1.