Here are number lines precisely sized to fit Base 10 Blocks, Cuisenaire Rods, and Unifix Cubes. The centimeter number line for Base 10 Blocks and Cuisenaire Rods is 41 centimeters long, which allows students plenty of space and numbers with which to explore and solidify concepts relating to place value, addition and subtraction with or without regrouping, and basic multiplication and division. These are useful in Grades 1-3.
Why 41 centimeters? Because it’ll fit on 17” by 11” paper, a size that can be printed or copied by many school office printers. So you can print as many as you like. The 0 to 20 Unifix number lines also fit on this size paper.
There are two different Unifix Cube number lines: 0-20 and 0-10. These are great for exploring addition and subtraction, especially for modeling the reversibility of addition and missing-addend problems. They allow students to accurately model problems “with the unknown in all positions,” as the Common Core states. Unifix Cubes preserve the addends.
There are also Unifix number lines intended for coloring, so students can decompose numbers to show the various combinations of addends, or “partners,” which make up those numbers: 11 = 1 + 10, 11 = 2 + 9, 11 = 3 + 8, and so on.
These are all full pages of number lines, intended to be printed, copied, laminated, and cut into individual number lines. Or if you want to leave a lamination border, cut the individual number lines out first, then laminate and trim.
The 40-cm and 0-20 Unifix number lines require 17” by 11” paper, so you will need access to a printer/copier that can handle this size. The other number lines are printed on standard letter paper.
Common Core Standards:
K.OA.2, 3, 4
Subject: Math, Basic operations, Addition, Subtraction, Place value
Level: Grade K – 3