gb
     Test     
-Dr.
com
hz

FOURTH GRADE / MATHEMATICS / SUBTRACTION of NATURAL NUMBERS 1.2

MATHEMATICS IS EASY. PROVIDED THAT ONE WORKS ENOUGH .
ENOUGH IS SKILL DEPENDENT, HAVE TO FIND "ENOUGH" FOR YOUR SIZE.

 (METHODS* of) SUBTRACTION of INTEGERS  (are) is

   ♦ 
METHOD(s) of DETERMINING the RESULT of
   ♦ COUNTING BACKWARD from a given INTE-  GER  NAMED as MINUEND

   ♦ by an AMOUNT of  ANOTHER  GIVEN  INTE-  GER  NAMED as SUBTRAHEND.

    Ref.-1
 * There are diff. methods all doing the same .
1. A subtraction operation has the property that the sum of all of its elementss is equal to 130.
What should be the value of the minuend in this case ?

a) 60
b) 65
c) 70
d) 55


The sum of all elementes is twicw the ninuend implies that minuend is ....
To know this fact proven in our previous test may let you spare precious time !
2. The difference and subtrahend of a subtraction operation are 73 and 54 respectively .
Which of the followings should then the minuend be ?

a) 127
b) 119
c) 121
d) 125
A. and S. being inverse operations, 73+54 = ... .
3. If the difference and subtrahend were 123 and 104 respectively, how much would the minuend differ (with respest to the minuend of Q.2) ?

a) none
b) 50
c) 100
d) 75
If both diff. and subtr. increases by 50, the minuend should increase by ... .
4. The subtrahend of a subtraction is 110. If difference and subtrahend are exchanged, the new difference wil be ... .

a) 110
b) 20
c) 220
d) unpredictable
M-S = D and M-D = S are the same equations .
5. The minuend of a subtraction has the value 75.
What will be the sum of all elements of this operation ?

a) 15
b) 25
c) 75
d) 150
M+S+D = M + M = 2xM .
6. If 150 is added to the minuend and 100 is subtracted from the subtrahend, the difference of a subtraction ... ,

a) increases by 150
b) decreases by 250
c) increases by 250
d) decreases by 150
150 added to minuend means difference increases by 150.
100 subtracted from subtr. means diff. increases bu 100.
If both done together ...

7.
What is the difference of the greatest 3-digit number (minuend) and the least 4-digit number ?

a) 1
b) 10
c) -9
d) -1
The absolute difference is "1".
8. 999999 - 1111111 = ?

a) -111112
b) -111111
c) -1111112
d) -1111111
Subtract the lesser from the greater and write the result with a minus sign.
For practical operation, add both numbers a "1".
9. What happens to the difference if 15 is sbtracted from the minuend and 5 is added to the subtrahend ?

a) it decreases by 20
b) it decreases by 10
c) it increases by 10
d) it increases by 20


If 15 is subtracted from minuend the difference decraeses by 15.
Addition of 5 to subtrahend means an additional ... by 5.
10. The difference of a subtraction is 75.
What will be the new difference if minuend and subtrahend are increased by 20 and 30 respectively ?

a) 25
b) 55
c) 65
d) 75
Increasing the minuend by 20 means the difference will then be 95 but an increase of the subtr. by 30 would bring this down to ... .
11. Referring to the figure, how many micrometers is the difference of thicknesses of an optical fiber and a single hair ?

a) 400
b) 40
c) 20
d) 4
The figure is not scaled but dimensions are given.
1 mm. 1000 mikrometredir.
12. Referring to the figure, how many micrometers is the difference of the height of Burj Dubai and thickness of a single hair ?

a) 807000040
b) 807000940
c) 8070940
d) 807999940
Burj Dubai's height in micrometers is ... .
1 m. 1 million micrometer.
13. The cutting edge thickness of a razor blade is given, in the 3rd region 4 micrometers deep from the tip, as 5 micrometers.
Assuming that the diameters of a whisker and a single hair are 60 micrometers, what will be the result of subtracting thrice the diameter of a whisker from the 3rd region thickness of a razor blade ?

a) 55
b) 50
c) 45
d) 40
The operation is trivial, the question aims that you make comparisons of small/thin objects .
14. Ali is 7 cm. taller than Quennie.
If Quennie wears a slipper with 4 cm thick base, what will be the difference between their lengths ?

a) 3 cm
b) 3
c) 4 cm
d) 4
Be careful about the units. Every physical quantity must have a unit.
15. The distance between two electric poles is 30 meters.
What will be the new distance if the distant one is shifted 3m. and the other 2 m. forwards ?

a) 32
b) 29
c) 31
d) 33
They both are shifted in the same direction .
16. The distance betwwen high-tension power line poles are 250 m. in the field.
The lines between two consequent poles are given a share in order to compensate for the winter-summer length changes and are 325 m. long.
How long a share is given for compensation ?

a) 100
b) 75
c) 70
d) 50
The wires will get longer in summer and shorter in winter. This total change may be, for 40 degrees change in T., 250 m. wire-length, about 30 m.
17. A retail seller has 127 m. of a special fabric. A customer buys 5 m. of this , the next customer buys 1 m. and the third buys 2 m. less then the first customer.
What should be the length of the fabric just before the third customer buys his share ?

a) 112
b) 118
c) 117
d) 115
Take care, the final length is not being questioned.
18. A retail seller has 100 m. of a fabric. A customer comes and buys 10 m. of it. Then each consequent customer buys from the same fabric 1 m. less than the previous customer buys.
What can be the number of customers satisfying the condition given above that have bought from this fabric. ?

a) 10
b) 12
c) 17
d) 21
There can not be an 11th customer of this type !
19. Referring Q. 18, what will be the length of the rest of the fabric after the 10th customer ?

a) 55
b) 50
c) 45
d) 40
Remember our addition tests, the sum of then numbers from 1 to n is equal to n(n+1)/2. For n=10 this gives 5x11
20. The warning plate on the road is 50 m. away. Mr. Smith's eye glasses forms the image of this sign plate at a point ten meters further away.
Mr. Black is 7 m. closer to the plate than Mr. Smith is.
Which choice gives the distance between the plate's image and Mr. Black ?

a) 53 m.
b) 47 m.
c) 67 m.
d) 60 m.
The details of optics can be neglected for the time being.
21. Suppose the Moses is born in 1200 B.C.
In this case, how old should an obelisk be that was erected 200 years before Moses was born ?

a) 3411
b) 3211
c) 3011
d) 1911
The date of erection of the obelisk should be 1400 B.C.
y
22. After having an equal share of 20 marbles, John and Robert began a game. The first day John gave Robert one marble, the second day Robert gave John 2 marbles and each successive day the one in turn gave the other one marble more than he got the previous day.
Whose marbles will first be completely used up ?


In case of need for tips or help, please get the mouse on "y" or click on "ry1/2".

RY1 RY2



a) John's
b) Robert's
c) Simultaneously
d) game ends up never


Have a look at ry1. Semih, i.e. John, has always the first decrease.
23. How long does the game between John and Robert take ?

a) 9
b) 10
c) 19
d) 20
please have a lokk at the ry1 of the previous Q.
24. The difference of two numbers is 28.
What will be the new difference if the operands are decreased by 16 and 13 respectively ?

a) 31
b) 8
c) 25
d) 21
If minuend is decreased by 15, the diff. decreases to 12 ... .
25. What should be the subtrahend if the difference is half of the minuend ?

a) 25
b) half of min.
c) half of subtr.
d) subtr. + 25
Note that diff. + subtr. should be the minuend .
This is the feedback!
Return to Begin

THANK YOU FOR YOUR VISIT; HOPE WE COULD BE OF USE.
FOR MUTUAL BENEFIT YOU MAY USE OUR FORUM.
© 2011 , İsmail GERMAN. ALL RIGHTS RESERVED
PLEASE PREFER GIVING LINK IF THAT SUFFICES

Share |


  
=> test-dr.com
  Logout
   Login


Test-Dr.com
GOOD SITE





Test-Dr.com
USEFUL SITE

VoltRank: Link Exchange
click geld im
internet
verdienen
now leicht geld
verdienen im
internet
site binary options
affiliate
program
drainage problem
blocked drains
stafford area
Karen Hill Tribe!
Thai village artisan
silversmith creation
Sportske Kladionice
dojava za danas
prelazi iz 2 u 1
see einfach schnell
geld
verdienen