DOUBLES WORD PROBLEMS
Double facts are additions in which a number is added to itself.
Examples :
1 + 1, 2 + 2
Internalizing double facts are helpful building blocks in developing fluency in adding single digit numbers.
Problem 1 :
David has 10 candies. Daniel has the double of what David has. How many candies does Daniel have ?
Solution :
Number of candies that Daniel has
= Double of what David has
= 10 + 10
= 20
Problem 2 :
John has 12 cookies. Jose has the double of what John has. How many candies does Daniel have ?
Solution :
Number of candies that Jose has
= Double of what John has
= 12 + 12
= 24
Problem 3 :
Allen has 12 boxes of cookies. Lily has 4 more than the double of Allen has.How many boxes does Lily have ?
Solution :
Number of boxes that Lily has
= 4 more than the double of what Allen has
= 12 + 12 + 4
= 28
Problem 4 :
Joshua traveled 8 miles and Peter traveled the double of Joshua. How many miles did Peter travel ?
Solution :
Number of miles that Peter traveled
= Double of Joshua traveled
= 8 + 8
= 16
Problem 5 :
Ethan has 4 pizzas boxes of cookies. Antony has 2 less than the double of what Ethan has.
Solution :
Number of pizzas that Antony has
= 2 less than the double of what Ethan has
= 4 + 4 - 2
= 6
Problem 6 :
Ryan traveled 8 miles and James traveled 3 miles more than the double of Ryan. How many miles did James travel ?
Solution :
Number of miles that James traveled is
= 3 miles more than the double of James
= 8 + 8 + 3
= 19
Problem 7 :
Jonathan has 12 pencils. Samuel has 7 less than the double of Jonathan has. How many pencils does Samuel have ?
Solution :
Number of candies that Samuel has
= Double of what Jonathan has
= 12 + 12 - 7
= 24 - 7
= 17
Problem 8 :
Dylan is 7 years old. Benjamin's age is 3 years more than the double of Dylan's age. Find the age of Benjamin.
Solution :
Age of Benjamin is
= 3 years more than the double of Dylan's age
= 7 + 7 + 3
= 17 years
Problem 9 :
Logan has $13. Brandon has $7 less than the double of Logan has. How much money does Brandon have ?
Solution :
Money that Brandon has
= $7 less than the double of Logan has
= 13 + 13 - 7
= 26 - 7
= $19
Problem 10 :
In a game Jackson has scored 15 points. Luke has scored 14 points less than the double of Jackson. Who is the winner ?
Solution :
Points scored by Jackson = 15 ----(1)
Points scored by Luke is
= 12 points less than the double of Jackson
= 15 + 15 - 14
= 30 - 14
= 16 ----(2)
Comparing (1) and (2), Luke has scored more points than Jackson.
So, Luke is the winner.
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WORD PROBLEMS
Word problems on simple equations
Word problems on linear equations
Word problems on quadratic equations
Area and perimeter word problems
Word problems on direct variation and inverse variation
Word problems on comparing rates
Converting customary units word problems
Converting metric units word problems
Word problems on simple interest
Word problems on compound interest
Word problems on types of angles
Complementary and supplementary angles word problems
Markup and markdown word problems
Word problems on mixed fractions
One step equation word problems
Linear inequalities word problems
Ratio and proportion word problems
Word problems on sets and Venn diagrams
Pythagorean theorem word problems
Percent of a number word problems
Word problems on constant speed
Word problems on average speed
Word problems on sum of the angles of a triangle is 180 degree
OTHER TOPICS
Time, speed and distance shortcuts
Ratio and proportion shortcuts
Domain and range of rational functions
Domain and range of rational functions with holes
Graphing rational functions with holes
Converting repeating decimals in to fractions
Decimal representation of rational numbers
Finding square root using long division
L.C.M method to solve time and work problems
Translating the word problems in to algebraic expressions
Remainder when 2 power 256 is divided by 17
Remainder when 17 power 23 is divided by 16
Sum of all three digit numbers divisible by 6
Sum of all three digit numbers divisible by 7
Sum of all three digit numbers divisible by 8
Sum of all three digit numbers formed using 1, 3, 4
Sum of all three four digit numbers formed with non zero digits
Sum of all three four digit numbers formed using 0, 1, 2, 3
Sum of all three four digit numbers formed using 1, 2, 5, 6
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