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Basic 1 · Mathematics

Number Operations

Notes on Number Operations for Basic 1 Mathematics. Open a topic to start.

  1. Adding NumbersIn this topic you will learn that adding means putting groups together. You will use the plus sign (+) and the equals sign (=).
  2. Taking Away (Subtraction)In this topic you will learn that subtracting means taking away. You will use the minus sign (–).
  3. Word Problems: Joining, Separating and ComparingIn this topic you will solve number stories. You will join groups, separate groups and compare groups within 20.
  4. Adding and Subtracting Are RelatedIn this topic you will see how adding and subtracting are linked. You will use this to find missing numbers within 20.