Blank Number Lines - Pack of 30

30 blank write-on, wipe-off number lines. Made from sturdy vinyl, the lines offer the opportunity for a variety of addition and subtraction exercises. Contains 10 x 0-10 (45 x 550mm), 10 x 0-20 (45 x 550mm) and 10 x 0-100 (45mm x 1.1m) number lines.