The Addition Working Charts include two control charts, four working charts and a box of answer chips. Activities with these charts will give the child opportunity to practice and to memorize the unit addition combinations.
The Addition Working Charts include two control charts, four working charts and a box of answer chips. Activities with these charts will give the child opportunity to practice and to memorize the unit addition combinations.
| 尺寸 | 27 x 47 x 2.5 cm |
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