Question

(8x9-4:2) - (91-9x9)
100-(27+ 7x6 - 48:8):7 =
(4x8 + 3x9 +21):10: (40 - 9x4) =
56 : (100 - 8x5 - 6x5 - 7x3 -1) =
(24+ 6x2):4 +7 (28 - 12:3):6-​

Answer 1

Răspuns:

(72-2)-(91-81)=70-10=60

100-(27+42-6) ÷ 7=100- (69-6) ÷ 7=100-63 ÷ 7=100-9=91

(32+27+21) ÷ 10 ÷ (40-36)=(59+21) ÷ 10 ÷ 4=80 ÷ 10 ÷ 4=8 ÷4=2

56 ÷ (100-40-30-21-1)=56 ÷(60-30-21-1)=56 ÷ (30-21-1)=56 ÷ (9-1)=56 ÷8=7

(24+12) ÷ 4+7(28-4) ÷ 6=36÷4+7  24=9 ( depinde ce operație ai pus)  24=

Explicație pas cu pas:

Answer 2

Răspuns:

Explicație pas cu pas:

( 8 × 9 - 4 : 2) - ( 91 - 9 × 9 ) =  60

= ( 72 - 2 ) - ( 91 - 81 ) =

= 70 - 10 =

= 60

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100 - ( 27 + 7 × 6 - 48 : 8 ) : 7 =  91

= 100 - ( 27 + 42 - 6 ) : 7 =

= 100 - ( 69 - 6 ) : 7 =

= 100 - 63 : 7 =

= 100 - 9 =

= 91

____________________________

( 4 × 8 + 3 × 9 + 21 ) : 10 : (40 - 9 × 4) =  2

= ( 32 + 27 + 21 ) : 10 : ( 40 - 36 ) =

= ( 59 + 21 ) : 10 : 4 =

= 80 : 10 : 4 =

= 8 : 4 =

= 2

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56 : ( 100 - 8 × 5 - 6 × 5 - 7 × 3 - 1 ) =  7

= 56 : ( 100 - 40 - 30 - 21 - 1 ) =

= 56 : ( 30 - 21 - 1 ) =

= 56 : ( 9 - 1 ) =

= 56 : 8 =

= 7

_____________________________

( 24 + 6 × 2) : 4 + 7 - ( 28 - 12 : 3) : 6 = 12

= ( 24 + 12 ) : 4 + 7 - ( 28 - 4 ) : 6 =

= 36 : 4 + 7 - 24 : 6 =

= 9 + 7 - 4 =

= 16 - 4 =

= 12