Question

5. Tính theo mẫu

1,23 x 2000 = 1,23 x 2 x 1000= 2,46 x 1000= 2460

a. 3,507 x 300 =

b. 0,0036 x 4000 = 

c. 0,026 x 2500 =

d. 234,105 x 2000 = 

Answer 1

a. 3,507 x 300 =3,507.3.100=10,521.100=1052,1

b. 0,0036 x 4000 =  0,0036 .4.1000 = 0,0144.100=1,44

c. 0,026 x 2500 =0,026 .25.1000 =0,65.100=65

d. 234,105 x 2000 = 234,105.2.1000=468,21.1000=468210

Answer 2

a. 3,507 x 300 =3,507 x 3x100=10,521x100=1052,1

b. 0,0036 x 4000 = 0,0036 x 4x1000=0,0144x1000=14,4

c. 0,026 x 2500 =0,026 x 25x100=0,65x100=65

d. 234,105 x 2000 = 234,105 x 2x1000=468,21x1000=468210

HT

Answer 3

a. 3,507 x 300 =  3,507 x 3 x 100 = 10,521 x 100 = 1052,1

b. 0,0036 x 4000 = 0,0001x 36 x 4 x 1000 = 0.1 x 144 = 14,4

c. 0,026 x 2500 = 0,001 x 26 x 25 x 100 = 0,1 x 650 = 65

d. 234,105 x 2000 = 234,105 x 2 x 1000 = 468,21 x 1000 = 468210

Answer 4

A.3507×300=3,510.3.100=10,501=1050,5 B.234,105×4000=0,0036.4.1000=0,0134.100=134 C.0,026×2500=0,026.251000=0,55000=55 D.234,105×2000=234,105.2.1000=468,21.1000=468210