Story questions in
integer chapters for students are difficult. The ability to solve the overall
story question for junior high school students in Indonesia is still relatively
low. This is probably because the story question questions require the ability
to properly understand each given problem. the number chapter that is the basic
mathematics contains many questions of story questions. And strangely when the
question of the mathematics story of the number chapter given to the students
the results remain disappointing.
The ability of students to do literacy math
problems is necessary in the habit. With the aim that the more students are
accustomed to solving story questions tailored to the problems of day-to-day,
the child's ability to understand every story question.
National Examination Questions and year-end exam
questions have many that use story question items. It is clear that the
government especially the Ministry of Education wishes Indonesian students have
higher thinking skills, not only skills in performing arithmetic operations but
already directed to solve math problems
There are many different types of math story
questions related to the topic of numbers. Today we will try some math story
questions about numbers and how to solve them.
Example of integer story 1
The provincial OSN contest set rules for students
who answered the right questions score 4, incorrectly scored (-2) and not
answered (-1). Of the 50 questions given by participants P answered 43
questions and 12 of them wrong. The total score earned by P participants is ...
a. 93 c. 117
b. 100 d 124
Settlement
sum = Answered + not answered
50 = 43 + not answered, means not answered 7
Answered = B + S
43 = B + 12 then the correct question is 43-12 = 31
Total score = B x 4 + S x (-2) + T x (-1) = 31 x 4
+ 12 x (-2) + 7 x (-1) = 124 - 24 - 7 = 93
The temperature in the refrigerator is -13ºC, while
the temperature in the room is 32ºC. The temperature difference in both places
is ....
A. 45ºC
B. 18 ºC
C. -18ºC
D. -45 ºC
completion
Temperature difference = highest temperature -
lowest temperature
=
32ºC - (-13ºC)
=
45 ºC
Example of integer story 3
In the Mathematics competition, each correct answer
is given a score of 3, the wrong answer is given a score of -1, and if not
answered a score of 0. Of the 40 questions tested, Dedi answers 31 questions,
of which 28 questions are answered correctly. Dedi's score is ....
A. 81 C. 87
B. 84 D. 93
Number of questions = Answered + not answered
40 = 31 + not answered, means not answered 9
Answered = B + S
31 = 28 + S then the question is answered
incorrectly there is 31-28 = 3
Total score = B x 3 + S x (-1) + T x (0)
=
28 x 3 + 3 x (-1) + 9 x (0) = 84 - 3 - 0 = 81
Sample integer story question 4
If the "#" sign means the number of the
first five numbers and three times the second number, then (-6) # 10 is ....
A.-60 C. 0
B.-30 D. 30
How to solve
-6 # 10 = 5 (-6) + 3 (10) = -30 + 30 = 0
Example of integer story question 5
If a = -4, b = 3, c = -2 and d = 1, the value of
ab + bc - cd - abcd is ....
A. -44 C. -36
B. -40 D. -24
Settlement
ab + bc - cd - abcd = (-4) (3) + (3) (- 2) - (-2)
(1) - (-4) (3) (- 2) (1)
=
-12 + -6 + 2 - 24
=
-40
Zika is 3 years older than Yeli. While Yeli 5 years older than Fari. If their age is 49 years, then the age
of Zika is ....
A. 12 years C. 20 years
B. 17 years old D. 22 years old
completion
Complete completion visit here
Similarly, the article integers story question and how to solve it. hopefully through this series of learning
we can better understand the questions of integer story questions.
Spirit
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