MindMap Gallery Quick math skills
Mind map of speed calculation techniques. There are many types of speed calculation techniques. The following are some common speed calculation techniques that can improve our mathematical thinking ability.
Edited at 2024-04-10 17:55:02Avatar 3 centers on the Sully family, showcasing the internal rift caused by the sacrifice of their eldest son, and their alliance with other tribes on Pandora against the external conflict of the Ashbringers, who adhere to the philosophy of fire and are allied with humans. It explores the grand themes of family, faith, and survival.
This article discusses the Easter eggs and homages in Zootopia 2 that you may have discovered. The main content includes: character and archetype Easter eggs, cinematic universe crossover Easter eggs, animal ecology and behavior references, symbol and metaphor Easter eggs, social satire and brand allusions, and emotional storylines and sequel foreshadowing.
[Zootopia Character Relationship Chart] The idealistic rabbit police officer Judy and the cynical fox conman Nick form a charmingly contrasting duo, rising from street hustlers to become Zootopia police officers!
Avatar 3 centers on the Sully family, showcasing the internal rift caused by the sacrifice of their eldest son, and their alliance with other tribes on Pandora against the external conflict of the Ashbringers, who adhere to the philosophy of fire and are allied with humans. It explores the grand themes of family, faith, and survival.
This article discusses the Easter eggs and homages in Zootopia 2 that you may have discovered. The main content includes: character and archetype Easter eggs, cinematic universe crossover Easter eggs, animal ecology and behavior references, symbol and metaphor Easter eggs, social satire and brand allusions, and emotional storylines and sequel foreshadowing.
[Zootopia Character Relationship Chart] The idealistic rabbit police officer Judy and the cynical fox conman Nick form a charmingly contrasting duo, rising from street hustlers to become Zootopia police officers!
Quick math skills
It’s all about options
calculate
Simple calculation
calculate
mantissa
If the number of digits is the same, use the mantissa.
Options
Subtract two and see three
Division calculation
One step calculation
truncation
Observe the options first, the nth bit is different
The numerator remains unchanged, and the denominator is rounded to n 1 digits.
Common question types
multiple
How many times has the pit increased (decreased) (remember to subtract one)
average
Who is being pitted and who is eliminated depends on the unit.
Ask who makes whom a molecule
two step division
direct elimination
Both divisors are truncated to n 1 digits
percentile
approximation
three step division
superposition
One by one
Make up multiples
Minato gets close
Mixed operations
Add and then divide
average
Find an easy-to-calculate benchmark value, compare it with other numbers, and cancel each other out.
Exclude maximum and minimum
Substitute options into
Divide first and then subtract
Big gap in options
direct elimination
Small gap in options
Make the denominators the same directly
Determine size
The result of subtraction is greater than the option
Compare
Division comparison
Look at the numerator and denominator separately
One big and one small will be judged directly
Tongdatong underestimates speed
The speed is different, the faster one is the main one
If the speed is the same, multiply it directly by the speed to compare.
Very close to using differential
Use difference fractions instead of large fractions to compare with small fractions
If the difference fraction is greater than the small fraction, then the greater fraction is greater than the smaller fraction.
The difference fraction is smaller than the decimal fraction, and the larger fraction is smaller than the smaller fraction.
If you choose the smallest one, first find the number with the smallest numerator or the largest denominator.
The fraction with the largest denominator. If the numerator is not the largest, exclude other larger ones.
The fraction with the smallest numerator. If the denominator is not the smallest, exclude other smaller ones.
Multiplication calculations and comparisons
percentage fraction
Back from one-half to one-twelfth
Frequently asked questions
proportion
Part = Total * Proportion
Current volume
Base period volume* (1 r)
Increment
Current amount*r/1 r
Compare
Growth amount=current amount*r/1 r
The current volume and growth rate are the same as the big and small increasing functions.
rThe bigger the score, the bigger the score
Big is big
Current volume and growth rate are one big and one small
Look at the speed
During the exam, the growth rate is generally about the same.
Look directly at the current volume
twice the relationship
Additional conclusions
Common sense judgment
social common sense
The east is more developed
political common sense
Wherever the policy reaches, it must be invincible