Question

Comparati numerele a si b unde:
a) a= 43,15+26,85 si b=17,8+52,1
b) a= 7,52 + 23,49 si b=47,123-16,023
c) a=237,19-37,29 si b= 321,12-121,22
d) a=202,02 - 20,2 si a= 203-203

2. Rotunjiti numarul 98765,43219 l cifra:
-Zecilor
-zecimilor
-sutelor
-sutimilor
-miimilor
-miilor
-zecilor de mii
-zecilor de miimi.

Transformati in KM : 7236m ; 12,98 dam ; 323 dm 

Answer 1

a) a = 70 si b = 69,9 =>  a> b
b) a = 31,01 si b = 63,146  => a< b
c) a = 199,90 si b = 199,90 => a = b
d) a = 181,82 si b = 0  =>  a > b  (cred ca e o greseala, este b si nu a)
2. 98760 - zeci
98765,43220 - zecimi 
98800 - sute
98765,43200 - sutimi
98765,43000- miimi
98800 - mii
99000 - zeci de mii
98765,40000 - zeci de miimi
3. 7236 m = 7,236 km
12,98 dam = 0.1298 km
323 dm = 0,323 km 

Answer 2

1) a)a= 43,15 + 26,85= 70
b=17,8+52,1= 69,9

a > b
70 > 69,9

b)a=7,52 + 23,49= 31,01
b=47,123 - 16,023=31,1

a < b
31,01 < 31,10

c)a=237,19-37,29= 199,9
b=321,12- 121,22= 199,9

a=b
199,9=199,9

d)a=202,02-20,2= 181,82
b=203-203=0

a > b
181,82 >0

2) -zecilor -> 98770
-zecimilor ->98765,43220

-sutelor -> 99000
-sutimilor ->98765,43000

-miimilor->98765,40 000
-miilor->10 000

-zecilor de mii->10 000
-zecilor de miimi->98765,0

3)7236m->7,236km

12,98dam->0,1298km

323dm-> 0,0323km