¡Kawashima Ryuta Kyoju No No Wo Kitaeru Otona No Keisan Drill 8
¡Kawashima Ryuta / Cho
Description
[Machine Translation] This book is not structured to lead students to a higher level, but consists of addition and subtraction of two numbers, multiplication, division, and addition and subtraction of three numbers. The puzzles are timed and require the user to solve them as fast as possible.
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