Skip to main content
MathKit

Addition Tables

Pick a value to view its full reference table.

Each row adds 1 to numbers 1 through 12. Addition tables help build number sense and make mental math faster.

Addition underlies every other operation here: multiplication is repeated addition, subtraction undoes it, and division counts equal groups being combined. Its two legal moves — commutativity (3 + 5 = 5 + 3) and associativity ((2 + 7) + 6 = 2 + (7 + 6)) — are what make column arithmetic work: digits may be regrouped in any helpful order, with one carry settled at the end. Each value page also shows the subtraction twin of every sum, so fact families come built in.

All 20 addition tables pages include a full data table, a worked explanation, and related calculators. Start withnumber 1or jump straight to the value you need below.

FAQ

What is this addition tables reference?

Each row adds 1 to numbers 1 through 12. Addition tables help build number sense and make mental math faster.

Which values are covered?

20 tables, from number 1 up to 20.

What does each page include?

A full data table, a short worked explanation, and links to related calculators for that value.