GAME INSTRUCTIONS
What is the objective of the game?
The game Calculate This consists of reaching the exact target number displayed on the screen using only digits from 1 to 9 (without the number 0) and basic arithmetic operations like addition, subtraction, multiplication, or division. Lacking a zero key, it forces players to perform strategic mental calculations against the clock, using multiplication to get close to the given number and making final adjustments with single-digit additions or subtractions before time runs out.Recommended age and educational level
This game is recommended for ages 8 to 9 and up (from upper elementary school through middle school, high school, and adults). This age range is recommended because it requires prior knowledge of multiplication tables, divisibility rules, and basic factorization. It is an ideal resource for students aiming to build mental math fluency, teachers and parents seeking a dynamic practice tool, and adults or seniors looking to sharpen processing speed and maintain cognitive health.How to play: single-player or multiplayer
The primary format of Calculate This is single-player on a single device, centered on personal challenge and beating the timer. However, it easily adapts to a collaborative or competitive group setting, where multiple players or classmates take turns solving the same target number, compare different operational pathways, or race to find the correct sequence in the shortest time possible.What do you learn with this game? Learning and skills
Through its fast-paced calculation mechanics, this game develops the following competencies:- Math curriculum content: Mastery of multiplication tables, recognition of multiples, factors, and divisibility, and practical application of arithmetic properties.
- Estimation strategies: Ability to rapidly approximate large target numbers using combined operations before making final single-digit adjustments.
- Cognitive skills: Enhancement of processing speed, working memory, mental flexibility, and problem-solving under time pressure.
Tips to get the most out of this game
To maximize performance, focus on mentally dividing the target number by 8 or 9 to locate the nearest multiple, placing you just one step away from the exact target using simple additions or subtractions under 10. As an unplugged offline activity, students can write down the target number on paper and draft at least two different operational equations to reach the exact value, comparing which combination required fewer steps.Video