DOUBLES WORD PROBLEMS

Double facts are nothing additions in which  a number is added to itself.

For example,

1 + 1, 2 + 2

Internalizing double facts are helpful building blocks in developing fluency in adding single digit numbers.

Problems

Problem 1 :

David has 10 candies. Daniel has the double of what David has. How many candies does Daniel have ?

Solution :

No. of candies that Daniel has  =  Double of what David has

=  10 + 10

=  20

So, Daniel has 20 candies.

Problem 2 :

John has 12 cookies. Jose has the double of what John has. How many candies does Daniel have ?

Solution :

No. of candies that Jose has  =  Double of what John has

=  12 + 12

=  24

So, Jose has 24 cookies.

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 :

No. of boxes that Lily has  =  4 more than the double of what Allen has

=  12 + 12 + 4

=  28

So, Lily has 28 cookies.

Problem 4 :

Joshua traveled 8 miles and Peter traveled the double of Joshua. How many miles did Peter travel ?

Solution :

No. of miles that Peter traveled  =  Double of Joshua traveled

=  8 + 8

=  16

So, Peter traveled 16 miles. 

Problem 5 :

Ethan has 4 pizzas boxes of cookies. Antony has 2 less than the double of what Ethan has. 

Solution :

No. of pizzas  =  2 less than the double of what Ethan has

=  4 + 4 - 2

=  6

So, Antony has 6 boxes of cookies.

Problem 6 :

Ryan traveled 8 miles and James traveled 3 miles more than the double of Ryan. How many miles did James travel ?

Solution :

No. of miles that James traveled  =  3 miles more than the double of James

=  8 + 8 + 3

=  19

So, James traveled 19 miles. 

Problem 7 :

Jonathan has 12 pencils. Samuel has 7 less than the double of Jonathan has. How many pencils does Samuel have ?

Solution :

No. of candies that Samuel has  =  Double of what Jonathan has

=  12 + 12 - 7

=  24 - 7

=  17  

So, Samuel has has 17 pencils.

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  =  3 years more than the double of Dylan's age

=  7 + 7 + 3

=  17

So, Benjamin's age is 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  

So, Brandon  has $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  =  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.   

Apart from the stuff given in this section, if you need any other stuff in math, please use our google custom search here. 

You can also visit the following web pages on different stuff in math. 

WORD PROBLEMS

HCF and LCM  word problems

Word problems on simple equations 

Word problems on linear equations 

Word problems on quadratic equations

Algebra word problems

Word problems on trains

Area and perimeter word problems

Word problems on direct variation and inverse variation 

Word problems on unit price

Word problems on unit rate 

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

Double facts word problems

Trigonometry word problems

Percentage word problems 

Profit and loss word problems 

Markup and markdown word problems 

Decimal word problems

Word problems on fractions

Word problems on mixed fractrions

One step equation word problems

Linear inequalities word problems

Ratio and proportion word problems

Time and work word problems

Word problems on sets and venn diagrams

Word problems on ages

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 

Profit and loss shortcuts

Percentage shortcuts

Times table shortcuts

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

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