Question

___ :3=5 rest 2
___ :7=6 rest 5

___ : 12=2 rest 1
___ :50=8 rest 8

30:___=15
80:___=16

Ajutor ;---;

Answer 1

a : 3 = 5 rest 2

a = 5 × 3 + 2

a = 15 + 2

a = 17

b : 7 = 6 rest 5

b = 6 × 7 + 5

b = 42 + 5

b = 47

c : 12 = 2 rest 1

c = 2 × 12 + 1

c = 24 + 1

c = 25

d : 50 = 8 rest 8

d = 8 × 50 + 8

d = 400 + 8

d = 408

30 : e = 15

e = 30 : 15

e = 2

80 : f = 16

f = 80 : 16

f = 5

Answer 2

Răspuns:

1)3×5=15+2=17

2)6×7=42+5=47

3)2×12=24+1=25

4)8×50=400+8=408

1)15×a=30

a=30:15

a=2

2)16×a=80

a=80:16

a=5