Some important formulas for fifth and sixth grade math books

Fifth grade addition subtraction multiplication Lasagu and Gasagu's formulas.

Biyag's formulas

1. Subtraction-Subtraction = Subtraction.

2. Dividend = Dividend + Dividend

3. Disapproval = disintegration-disintegration

Quality formulas

1. product = product = multiplier

2. Multiply = Multiply ÷ Multiply

3. multiplication = product ÷ multiplier

Sharing formulas

If not infinitely divisible.

1. Divisor = divisor × quotient + quotient.

2. Divisor = (Divisible: Divisor) Divisor.

3. quotient = (divisible - quotient) ÷ divisor.

If infinitely divisible.

4. Divisor = Divisible ÷ quotient.

5. Quotient = Divisible ÷ Divisor.

6. Divisible = divisor × quotient.

LSG and GSG formulas of fractions 

1. GC of fraction = GC of Lobgula / LG of Hargula

2. LSG of Fractions = LSG of Lobgula / GSG of Hargular

3. Multiplication of fractions = LSG of fractions × GSG of fractions.

Average diagnosis 

1. Average = sum of sums / number of sums

2. Sum of sum = average  number of sums

3. Number of sums = sum of sums ÷ average

4. Average of income = amount of mate income / number of mate lakes

5. Average of numbers = sum of numbers / quantity or number of numbers

6. Average of serial order = last term + 1st term / 2

Formulas for determining the amount of interest

1. Interest = (interest rate × real × time) ÷ 100

2. Time = (100 interest) (real interest rate)

3. Interest rate = (100 × interest) (real × time)

4. Real = (100 interest) (time interest rate)

5. Original = {100 × (interest-principal) ÷ ​​(100+ interest rate × time)

6. Interest = real + interest

7. Interest rate = real × (1+ interest rate) × time | [in case of compound interest].

Profit-loss and buy-sell formulas

1. Profit = sale price-purchase price

2. Loss = purchase price-selling price

3. Purchase price = sale price-profit

Or

Purchase price = sale price + loss

4. Sale price = purchase price + profit

Speed ​​formulas

Something

Velocity = distance traveled / equal

2. Distance traveled = velocity × equal

3. Time = total distance / bay

4. The effective speed of the boat in favor of the current = the actual speed of the boat + the speed of the current

5. The effective speed of the boat against the current = the actual speed of the boat - the speed of the current

Simple

If Original = P, time = T, interest rate = R, interest-real = A, then

1. Amount of interest, I = Prn

2. Original, P =(I*100)/rn

3. Time, N=(I*100)/pn

4. Interest-real, A=p(1+rn)

The speed of the boat is 10 km per hour in favor of the current. And 2 km against the current. Current velocity

★ Technique

Current velocity = (boat speed in favor of current - speed of boat against current)

= (10 - 2) /

= 4 km

A boat travels 8 km per hour in favor of current and 4 km per hour against current.

Goes. Boat speed a

★ Technique

Boat speed = (boat speed against current + boat speed against current)

= (8 + 4)

= 6 km

The speed of the boat and the current is 10 km per hour respectively. And 5 km. 45 km by river. How long does it take to go back once?