Question

Calculează pe caiet în două moduri a) (35 + 5): 5= b) (35-25):5= c) (36 +24): 6= d) (18+30): 6= e(28+35):7= f(49-21):7=​

Answer 1

Răspuns:

a) I (35+5):5= 40:5= 8

II (35+5):5= (35:5)+(5:5)= 7+1= 8

b) I (35-25):5= 10:5= 2

II (35-25):5= (35:5)-(25:5)= 7-5= 2

c) I (36+24):6= 60:6= 10

II (36+24):6= (36:6)+(24:6)= 6+4= 10

d) I (18+30):6= 48:6= 8

II (18+30):6= (18:6)+(30:6)= 3+5= 8

e) I (28+35):7= 63:7= 9

II (28+35):7= (28:7)+(35:7)= 4+5= 9

f) I (49-21):7= 28:7= 4

II (49-21):7= (49:7)-(21:7)= 7-3= 4