Rabu, 19 Februari 2014

elementary school.

Soal Matematika SD Bilingual

1.  A street vendor sells beverages A and B. Beverage A it is sold for Rp  1.500,00. Beverage B it is sold for Rp 1.000,00. A young man buys two box type A, then a boss buys up five box type A, and eight box type B. How money a street vendor today ?

        Answer :
            -  A young man buys two box type A.
                1.500 x 2 = 3.000
             -  A boss buys fife box type A and eight box type B.
                1.500 x 5 = 7.500
                1.000 x 8 = 8.000 +
                                 15.500
             - So, 15.500 + 3.000 = Rp 18.500,00

2. Uncle's garden is rectangle. One-fourth of the garden is planted with chrysanthemum. Tow-fourth of the garden is planted with dahlia.how many parts of the garden are planted with chrysanthemum and dahlia?

         Answer : given :1/4 part of the garden is planted with chrysanthemum
                      2/4 part of the garden is planted with dahlia
           Solve : 1/4 + 2/4 =  1+2  = 3/4
                                           4
         So, the parts planted with chrysanthemum and dahlia are 3/4 part.

 
3.   1 ballpoint costs Rp 3.750,00 and 1 note book costs Rp 2.250.00. Ria  
      buys 3 ballpoint and 2 note books. Ria pays twenty thousands rupiahs. How   
      Much is the change?

      Answer : shoping price = (3 x Rp 3.750,00) + (2 x Rp 2.250,00)
                                        = Rp 11.250,00 + Rp 4.500,00
                                        = Rp 15.750,00   
             Change      = money paid - shoping price
                             = Rp 20.000,00 – Rp 15.750,00
                             = Rp 4.250,00
      So, the change ria receives is Rp 4.250,00
   
4.   Ari and madi are playing kites. The length of ari's kite rope is 10 m. The
      length of madi's kite rope is 1.500 cm. How many cm is the difference
      between the length of ari's and madi's kite rope ?


      Answer : length of ari's kite rope 10 m = 1.000 cm
             Length of madi's kite rope 1.500 cm
             1.500 - 1.000 = 500 cm
 So, the difference between ari's and madi's kite rope is 500 cm.


5.  Ari is coloring a flat parallelogram-shaped structure. The base of the
     Parallelogram is 12 cm and its height is 7 cm. What is the area of the
     parallelogram colored by ari?
  
     Answer : base = 12 cm
                Height = 7 cm
                   Area = base x height       
                           = 12 cm x 7 cm = 84 cm^
     So, the area of parallelogram colored by ari is 84 cm^.