Question

Oblicz:
3 • 7 - 4 • 5 =
6 • (2+7) =
10 • 6 + 12 :3 =
70- (25 - 4) :7 =
10 • 6 +12 :3 + 1 =
5 • (4+7) - 6 • 3 =
8 • 9 - (5 • 4 - 2 • 7) - 2
2 • 9 :3 +12 • (17 - 4 • 3 )
2 •70 - (3•5 +14) • 2 - 10
Daję naj :)

Answer 1

3*7-4*5=21-20=1
6*(2+7)=6*9=54
10*6+12:3=60+4=64
70-(25-4):7=70-21:7=70-3=67
10*6+12:3+1=60+4+1=65
5*(4+7)-6*3=5*11-18=55-18=37
8*9-(5*4-2*7)-2=8*9-(20-14)-2=72-6-2=64
2*9:3+12*(17-4*3)=2*9:3+12*(17-12)=2*9:3+12*5=2*3+60=6+60=66
2*70-(3*5+14)*2-10=2*70-(15+14)*2-10=2*70-(29*2)-10=2*70-58-10=140-58-10=72

Answer 2

3 • 7 - 4 • 5 = 21 - 20 = 1

6 • (2+7) =  6 • 0 = 54

10 • 6 + 12 :3 =  60 + 4 = 64

70- (25 - 4) :7 =  70 - 21:7 = 7 - 3 = 4

10 • 6 +12 :3 + 1 =  60  + 4 + 1 = 65

5 • (4+7) - 6 • 3 = 5 • 11 - 18  = 55-18 = 37

8 • 9 - (5 • 4 - 2 • 7) - 2 = 72 - 6 - 2 = 64

2 • 9 :3 +12 • (17 - 4 • 3 ) =  18 : 3 + 12 • 5 = 6 + 60 = 66

2 •70 - (3•5 +14) • 2 - 10 = 140 - 1 = 140 - 29 • 2 - 10 = 140 - 58 - 10 = 72