1 x number of shares per share = total number of shares ÷ number of shares = 2 1 multiple × multiple ÷ 1 multiple = multiple ÷ multiple = 1 multiple 3 speed × time = distance \ Total price ÷ quantity = unit price 5 Work efficiency × working hours = total workload ÷ Work efficiency = total working hours ÷ Working hours = work efficiency 6 Addendum+Addendum = sum-one Addendum = another Addendum 7 Minus-Minus = Difference Minus-Difference = Minus+Minus = minus 8 factor × factor = quotient divided by number ÷. Square c perimeter s area a side length perimeter = side length× 4c = 4a area = side length× side length S=a×a 2 cubic v: volume a: side length surface area = side length× side length× 6s table = A× A. A×a 3 rectangle c perimeter s area a side length perimeter = (length+width )× 2c = 2 (a+b) Kloc-0/) Surface area (length× width+length× height+width× volume = length× width× height V=abh 5 triangle S area A bottom H height area = bottom× height ÷2 s=ah÷2 triangle height = area× 2 bottom triangle bottom = area× 2 ÷. × height ÷2 s=(a+b)× h÷2 8 circular S area c perimeter ∏ d= diameter r= radius (1) perimeter = diameter× ∏ = 2×××× radius c =∏ d = 2. Bottom area r: bottom radius c: bottom perimeter (1) lateral area = bottom perimeter x height (2) surface area = lateral area+bottom area x 2 (3) volume = bottom area x height (4) volume = lateral area ÷ 2 x radius 10 cone v: volume h: height. Base area r: base radius volume = base area × height ÷3 Total number ÷ Total number = formula (sum+difference) ÷ 2 = large number (sum-difference) ÷ 2 = sum of decimal and multiple problems ÷ (multiple-1) = decimal × multiple. = Decimal Decimal × Multiply = Large number (or Decimal+Difference = Large number) Tree planting problem 1 Tree planting problem on the non-closed line can be mainly divided into the following three situations: (1) If trees are planted at both ends of the non-closed line, Then: number of plants = number of segments+1 = total length ÷ plant spacing-1 total length = plant spacing × (number of plants-1) plant spacing = total length ÷ (number of plants = number of nodes = total length ÷ plant spacing = Then: number of plants = number of nodes-1 = total length ÷ spacing between plants-1 total length = spacing between plants × (number of plants+1) spacing between plants = total length ÷ (number of plants +0÷ difference between two distributions = number of shares participating in distribution (. Meeting distance = speed × meeting time = meeting distance; The sum of speed and speed = meeting distance; Meeting time; Catch up with the problem; Distance = catch up with time; Distance; Speed difference = catching distance; Catch up with time; Downstream velocity =-water velocity = (downstream velocity+countercurrent velocity) ÷2 Water velocity = (downstream velocity-countercurrent velocity) ÷2 Concentration problem Solute weight+solvent weight = solution weight ÷ solution weight × 100% = concentrated solution weight × concentration = solute weight ÷ concentration = solution. × 100% increase or decrease = principal× increase or decrease percentage discount = actual selling price ÷ original selling price× 1 00% (discount < 1) interest = principal× interest rate× time after tax interest = principal× interest rate× time × (1-) Km = 6543838+0 km2 = 100 ha 1 000 m2 1 mu = 666.666 m2 1 m2 = 100 m2/kloc. Product unit conversion 1 m3 = 1000 cubic decimeter 1 cubic decimeter = 1000 cubic centimeter 1 cubic decimeter = 1 liter 1 cubic centimeter =/kloc-0. 38+0000kg 1 kg = 1000g 1 kg RMB unit conversion 1 yuan =10 angle/kloc-0 angle =/kloc-0. In 2000, 1 year =1February (3 1 day) was:1\ 3 \ 5 \ 7 \ 8 \10 \/February (30. Leap year 366 days 1 day =24 hours 1 hour =60 minutes 1 minute =60 seconds 1 hour =3600 seconds.

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