Рубрика: Մաթեմատիկա

952

            
    ,        ,    

957.                                լուծում 

                                    1) 1000:5=200 դ․

                                    2)200×3=600  դ․

                                    3) 600+200=800

                                    4) 1000-800=200  դա․

                                                                                                                            Պատ՝․ 200:

959.                              

                                      լուծում 

                                    1)  120:3=400մ

                                    2)  400×2=800մ

                                    3) 1200-800=400մ

                                                                                   Պատ`.800,400:

962.                

                                                       լուծում 

1. 2023-1992=37
2. 37+5=42
3. 2023-7=2016

                                                                                                 Պատ`.2010:

975.

              >    ,    >    ,  >  ,    

978.     

                                 լուծում    

1. 780:5=156
2. 156×3=462
3. 780-462=318            

                                                                 Պատ`.318,462:

981.                                     

                                                        լուծում    

1. 128X2= 256

                                  լուծում  `,256:

988.           2օր 3ժ

 986.                           1977-1880=92

                                     2023-1972=51

998.                        49×2=98            6×2=12           10×30=300

                                70×5=350        30×3=90         30×10=300

1029.

                  34×42=1428                 10208:202=63                     50025:25=2001

                  1890:35=54                  88×55=4840       

1039                           77կմ-35մ=76կմ 65մ                             15 կգ  — 670գ= 14կգ 330գ

                                    42դմ  2սմ-7սմ=3դմ 5սմ                       22տ  210կգ-240կգ= 21տ  70կգ

508.      

                      Լուծում

       1)98-12=86 կմ

       2) 86:2=43կմ

       3) 43+12=55կմ

                                     Պատ՝․ 55կմ։

750.                    Լուծում

                        1)  30կմ

752.                    

            Ա)

                          Լուծում

1. 20×7=170կմ( խ․)

                                          Պատ`.170կմ( խ․)

     Բ)             Լուծում

1. 5×20=100 կգ
2. 100×7=700 կգ

                                                Պատ`.700 կգ:

753  

             ա)

                           Լուծում

1. 245×4=980լ

                             Պատ`.980լ

           բ )     

                     Լուծում                        

1. 3150:210=15 լ

                                                    Պատ`.15:

    763          

           Ա)    Լուծում

1. 2×80=160
2. 2×100=200
3. 160+200=360  

                                                        Պատ

        Բ)         Լուծում

1. 18:2=9
2. 9-3=6(կմ)
3. 9×2+6X2=30կմ (ժ․)

769.                   

        Ա) 756×92-18940:(2202-2114)-8424×0=88

1. 2202-2114=88
2. 756×92=69552
3. 8424×0=0
4. 69552-18040=51512
5. 88-0=88

     810.               Լուծում

                     1) 84+3=87

                                                Պատ`.87:                         

       819                                

                                  Լուծում

                          1)180:3=60

                          2) 5×60=300 (5ժ․)

                                                         Պատ`.300:            

          427.                                                                                        ա  բ

                     ա ) 55×66=3630                բ) 3267:99=33

                           169:77=22                       22×33=726

                           2904:88=33                    605:11=55

      453.   ա) 6234-503=1197                      բ) 15004-11231=3773              գ) 10002-5030=4968

                    7486-3021=4465                          52001-305=51696                  70786-5200=655286

          469.             

                                                              լուծում

                                                P=100×4=400(մմ)

                                                S=25×25=625 մմ

         471.                            

                                                                 Լուծում

1. 320+240=560   (մ)

                                                                                             Պատ՝․560մ:

473.    

                                                     Լուծում

                                           1)42+6=48   (կմ)

                                                                                Պատ`.48կմ։

492.                             

                                                                 Լուծում

1. 75+15=90   (կմ) ժ
2. 95-75=20

                                                                                                 Պատ`.90,20:

494                                                 

1. 65+55=120
2. 170-120=50 կմ

                                                                                               Պատ`.50 կմ:

  495 .                                                  

                                        ա )    46+46=92                բ) 76:2=38   սմ

                                                  p=92             

496 .                                              

                                Ա   )                                            բ)        

                                                     Լուծում                         Լուծում

1.  52+6=58                     1)46-8=38      
2.  58:2=29                      2)38:2=19 (լ)
3. 29+6=35

      Պատ`.35:              3)19+8=27             Պատ`.27:

500.        

                 Ա)      12462+1243=13705                   բ)  21345-3246=18099

                           65241-5462=59778                         2105+1203=3308

                          33333-9874=23459                          52147-3254=48893

 501.

                       ա )            242×321=77682                  բ) 6655:55= 121

                                        8712:132=66                           44×33=1452

                                        3434:101=34                           9090:202=45

503 .                

                                  Ա) 4162>4062                  բ ) 74912>74820      

                                      7230>7224                        65507>65420

                                      234<23418                        52285<52318

                                      723878<723900                 40754<408543

508.

                                              Լուծում 

1. 98  -12=86Կմ
2. 86:2=2=43 կմ
3. 43+12=55 կմ

                        Պատ`.55 կմ ։

 322.    

                                                                          Լուծում

1. 78+22=100
2. 240-100=140

                                                                                               Պատ՝․140:

 331   

                                       —A—M—C—E—N—B

376     

                                                                  Լուծում

1. 25000X3=75000
2. 117000-75000=42000
3. 42000:2=21000

                                                                                                                    Պատ`.21000:

              391 .

                                             Եղեգնաձոր

         405. 

                                                                                                                                    X6

                               Բ)                   x50                                                                      

                                    4200                                   210000                 1560                                              9360

                                                        :50

414

                                                         Լուծում

1. 2880:12=240
2. 240×20=4800

                                                                                    Պատ`.4800:

 427.                      ա      55×66=3630          բ    3267:99=33

                                      1694:77=22                   22×33=726

                                      2904:88=33                   605 :11=55

453

                                   6234-5037=1197

                                  7486-3021=3773

 322.    

                                                                          Լուծում

1. 78+22=100
2. 240-100=140

                                                                                               Պատ՝․140:

 331   

                                       —A—M—C—E—N—B

376     

                                                                  Լուծում

1. 25000X3=75000
2. 117000-75000=42000
3. 42000:2=21000

                                                                                                                    Պատ`.21000:

              391 .

                                             Եղեգնաձոր

         405. 

                                                                                                                                    X6

                               Բ)                   x50                                                                      

                                    4200                                   210000                 1560                                              9360

                                                        :50

414

                                                         Լուծում

1. 2880:12=240
2. 240×20=4800

                                                                                    Պատ`.4800:

 427.                      ա      55×66=3630          բ    3267:99=33

                                      1694:77=22                   22×33=726

                                      2904:88=33                   605 :11=55

453

                                   6234-5037=1197

                                  7486-3021=3773 

                   159 .

                                     ա) 18օր 5ժ =17օր  39ժ.         բ) 24կմ 52մ= 23կմ 1052մ                    

                                          14ժ  20ր=13ժ 80ր.                28մ 5դմ=26մ 15դմ            

                                           27ր 5վ=26ր 65վ.                  24սմ 7մմ= 23սմ 17մմ  
                                                             գ) 3տ 500կգ = 2տ 1500կգ 

                                                                 24կգ 200գ=23կգ  1200գ       

                                                                 27 ց  50կգ = 26ց 156կգ  

•                                                  Լուծում                               
• 1200:2=600գ
• 600:10=60գ             

                                                                                           Պատ՝․60գ

 209.                     

                  CD,EF,AD,FM,EN,DN,BF,CM,N,EFNM,ABFE,BCME,ABCD,FADN,DCNM   

       115..

                    ա)  (7+15)  X10-150=70                               բ )  (3+125)x5-625=15

                           1) 7+15=22                                                 1)  125+3=128                                       

                           2) 22X10=220                                             2)  128×5=640

                           3)220-150=70                                             3) 640-625=15

113

                                  ա)  450×32-526+(9324-872):2=  18100                

                                                     1) 9324-872=8452

                                                     2) 450×32=14400

                                                     3) 8452:2=4226 

                                                     4) 14400-526=13872

                                                     5) 13874+4226=18100

    137                   

                                                                  Լուծում

                                               1)52×2+44=148 մմ քառակուսի                                      

                                                                            Պատ՝․148 մմ։

125

                                                             Լուծում 

1. 20+21+46+25+9=121մմ քառակուսի
2. 20x21x46x25x9=4347000 մմ 

                                      Պատ՝․121մմ քառակուսի ,4347000 մմ:

                   159 .

                                     ա) 18օր 5ժ =17օր  39ժ.         բ) 24կմ 52մ= 23կմ 1052մ                    

                                          14ժ  20ր=13ժ 80ր.                28մ 5դմ=26մ 15դմ            

                                           27ր 5վ=26ր 65վ.                  24սմ 7մմ= 23սմ 17մմ   

                                                             գ) 3տ 500կգ = 2տ 1500կգ 

                                                                 24կգ 200գ=23կգ  1200գ       

                                                                 27 ց  50կգ = 26ց 156կգ  

       169 . 

                                   ա)                    

                                                                 Լուծում

1.  2344-640=1704
2. 1704:2=852 հայկի
3. 852+640+1492

                                                                                                   Պատ՝․1492,640:

                             բ)                                                  

                                                              Լուծում

1.  2349+45=2394
2. 2394:2=1197               

                                                                                                      Պատ՝․1197:

  175                              

                                                                    Լուծում

1. 600-200=400

                                                                                                      Պատ՝․400:

182                       ա )          800մ

                                         3կ 100մ

                                        3 մ  50սմ

 185                     

                                                                    Լուծում

                                                              1)450:2=250 մ․

                                                              2)250-12=238 աղ․

                                                              3) 250+12=262 տ․

                                                                                                 Պատ՝․262: 

196                     

                                                                  Լուծում 

1. 12+45+21+16=132

                                           Պատ՝․132: 

•                                                  Լուծում                               
• 1200:2=600գ
• 600:10=60գ             

                                                                                           Պատ՝․60գ:

     229 

                              Ա)        3635-178=3457           բ)   5564-3485=2079         գ) 4606-1248=3358

                                          2482-124=2234                   4607-2331=2278            3003-815=2088

115. Կազմի՛ր արտահայտությունը և հաշվի՛ր արժեքը։

           Ա) (7+15)x10-150=70

                1)7+15=22

                2)22×10=220

                3)220-150=70

           Բ)  (3+125)x5-625=15

                1) 125+3=128

                 2)128×5=640

                3)640-625=15