Adult Lively Brain Drill Calculation

SKU: 4549131928914
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country of origin (region): Japan
Material: Body: paper
Product Size: 18.2cm ~ 25.7cm ~ 0.4cm
QTY: 1 pcs
Assortment: None Assorted
A simple math problem by solving written in fluently and hand is a drill for the purpose of the use of aggressive brain.
Large letters and write space making it easy to use.