





set of five books
Free partitioning with cover
Double-sided writing surface
Partitioned calculation and logical clarity
Supports various mathematical expressions and formulas such as a² = d - d3, C - BD - CA - DB, -a - b.c, -abc, S - 6a, av3, (ab) = ab², a + cy, tgd =, b(c + y,)3, a(nlaxbl + c), a° = 1, (x)f = 6, f(x)△x = 4df(x), x + bx, a = Va, lognob = tg6, ab = √a, S - bh, me - ho - loVa² - b/4, BD - DDAC² + BD² - 2(a² + b²), SKon = Scn + S8oK, y - cosx), q? + 6? = c², J - 3.141592...
Redefines draft writing and logic
Thickened paper option and thin paper option
Smooth double-sided writing without ink bleeding or paper damage
Eye-protective beige paper designed to reduce eye strain for long-term use
Suitable for A4 printing
All-purpose notebook for multiple uses including classroom notes, draft calculations, and creative drawing

[Math Homework Sheet Vertical Lines]
CNÂ¥40.00

[English paper]
CNÂ¥7.90

[Set of 5 Blank] A6/70 Sheets per Book Transparent Cover
CNÂ¥13.50

A4//5 copies/100 sheets each/500 sheets in total
CNÂ¥29.90