Number operations are the basic mathematical processes we use to work with numbers. These include addition, subtraction, multiplication, and division.
Combining numbers: 5 + 3 = 8
Taking away: 8 - 3 = 5
Repeated addition: 4 × 3 = 12
Splitting equally: 12 ÷ 3 = 4
When we have multiple operations in one problem, we follow the BIDMAS rule:
Example: 2 + 3 × 4
Step 1: 3 × 4 = 12 (multiplication first)
Step 2: 2 + 12 = 14
1. Calculate: 15 + 7 × 2