Doraemon Fun Arithmetic Strategy Addition and Subtraction Shogakukan This is the first volume of the arithmetic series, published in 1991 and in its 35th printing. Through the fun story development unique to Doraemon's manga, you can correctly and easily understand "why it works that way." You can learn regardless of your grade level(^^) There are some minor stains here and there. There is no problem with reading it, but please understand this before purchasing. Addition Subtraction Addition Subtraction First Grade Second Grade