Question

K)1000-342:6×4+28-799=
L)525:5+(480:8-30)+140:7-13=
M)2+(3×4:6×50-50)+(50:10×6:3+20)=

Ajutatima va rog frumos va dau coroana și 5 stelele

Answer 1

Răspuns:

1000 - 342:6×4+28 - 799 =

1000 - 57 ×4 +28 - 799=

1000 - 228 +28 - 799 =

772 +28 - 799 =

800 - 799 =

1

525 :5+ (480:8-30)+140:7-13 =

105 +(60 - 30) +20 - 13=

105 +30 +20 - 13 =

135 +20 - 13 =

155 - 13 =

142

2+(3×4:6×50 - 50) +(50 :10 ×6 :3 +20)=

2 +(12 :6×50 - 50) +(5 ×6:3+20)=

2 +(2 ×50 - 50) +(30 :3 +20) =

2 +(100 - 50) +(10 +20) =

2+50 +30 =

52 +30 =

82

Answer 2

Răspuns:

Explicație pas cu pas:

k)  

1 000 - 342 : 6 × 4 + 28 - 799 = 1

= 1 000 - 57 × 4 + 28 - 799 =

= 1 000 - 228 + 28 - 799 =

= 772 + 28 - 799 =

= 800 - 799 =

= 1

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l)

525 : 5 + ( 480 : 8 - 30 ) + 140 : 7 - 13 = 142

= 105 + ( 60 - 30 ) + 20 - 13 =

= 105 + 30 + 20 - 13 =

= 135 + 20 - 13 =

= 155 - 13 =

= 142

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m)

2 + ( 3 × 4 : 6 × 50 - 50 ) + ( 50 : 10 × 6 : 3 + 20 ) = 82

= 2 + ( 12 : 6 × 50 - 50 ) + ( 5 × 6 : 3 + 20 ) =

= 2 + ( 2 × 50 - 50 ) + ( 30 : 3 + 20 ) =

= 2 + ( 100 - 50 ) + ( 10 + 20 ) =

= 2 + 50 + 30 =

= 52 + 30 =

= 82