Răspuns:
3. [(x+58)*3+4]=1991:11=181
(x+58)*3=181-4 = 177
x+58=177:3= 59
x=59-58 =1 x=1
2. |____|____|____| total(12 parti)
|____| a=1/3* t
|__|__|__|__| Rest
|__| b=1/4*R
c=18 =3/4 18:3=6 km (a doua zi b)
18+6=24 km rest (2/3 *total)
a=1/3 =24:2= 12 km (prima zi a)
total= 24+12=36 km
1. |______|______|______|______|______|______| ( 36 parti)
(a=2/6 dictando)|____|____|____|____|____|____| ( 24 parti R1)
(b=2/6 mate ) |__|__|__|__|__|__| (12 parti R2)
(c=2/6 schite) |__|__|__|__| 16 caiete mari
16:4= 4 caiete ( 1 parte)
4*2= 8 caiete schite (c)
16+8= 24 caiete (R2 ) 8*3=24 ( 4 parti egale)
24:4= 6 caiete(1/6 o parte egala)
6*2= 12 caiete matematica (b=2/6)
24+12 =36 caiete R1 12x3=36 ( 4 parti egale)
36:4=9 caiete (1 parte egala)
9*2= 18 caiete dictando
18+36=54 caiete total
