Challenge 1st Grade ◆ Carry-over/Carry-under Calculation Master (Functionality confirmed, with instruction manual) It has not been reset, so you can enjoy various modes such as practice mode, teaching mode, and games. ◆ Detective Research Pen (Functionality confirmed, with instruction manual) ◆ Detective Book 1 ◆ Detective Book 2 "Detective Book 1 & 2" are structured to review important topics that 1st graders should master. (Katakana, Kanji character shapes, calculations with carry-over/carry-under, Kanji stroke order, Kanji readings, clocks, large numbers) This is an educational material that allows you to efficiently review while enjoying the manga using the "Detective Research Pen." *The instruction manuals for the Detective Books and Calculation Master have some folds and wrinkles, but please consider this if you are not concerned. *Both the Calculation Master and the Detective Research Pen will be sent with batteries included, so you can use them immediately. Instant purchase OK. Challenge 1st Grade Challenge 1st Grade Shinken Zemi Benesse