Solving these types of calculations isn’t just useful for school or to help your children: it’s a real mental workout . By training the areas of the brain related to logic, memory, and reasoning, you maintain intellectual acuity.
A good exercise to keep your mind active every day!
Steps to solve
Initial expression:
3 × 3 + 3 ÷ 3 – 3
Phase 1 – Multiplication
3 × 3 = 9
New expression:
9 + 3 ÷ 3 – 3
Phase 2 – Division
3 ÷ 3 = 1
New expression:
9 + 1 – 3
Phase 3 – Adding
9 + 1 = 10
New expression:
10 – 3
Phase 4 – Subtraction
