Question

3x100:6-(200-20):9+45:5-5
Ex doi 700:(5x5x2x2)+700:5:5:2:2-700:100
Ex trei [22+3x3x3-4:4-50:(5+5)+7]:(8-8:8+34)
Dau coroana va rog daca puteti cu explicatie

Answer 1

1) 3x100:6-(200-20):9+45:5-5 =

= 300:6-180:9+9-5 =

= 50-20+4 =

= 30+4 = 34

2) 700:(5x5x2x2)+700:5:5:2:2-700:100 =

= 700:100+140:5:2:2-7 =

= 7+28:2:2-7 =

= 7+14:2-7 =

= 7+7-7 =

= 7+0 = 7

3) [22+3x3x3-4:4-50:(5+5)+7]:(8-8:8+34) =

= (22+27-1-50:10+7):(8-1+34) =

= (48-5+7):41 =

= 50:41

Answer 2

Răspuns

Explicație pas cu pas:

3 x 100 : 6 - ( 200 - 20 ) : 9 + 45 : 5 - 5 = 34

= 300 : 6 - 180 : 9 + 9 - 5 =

= 50 - 20 + 9 - 5 =

= 30 + 9 - 5 =

= 39 - 5 =

= 34

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700 : ( 5 x 5 x 2 x 2 ) + 700 : 5 : 5 : 2 : 2 - 700 : 100 = 7

= 700 : ( 25 x 4 ) + 140 : 5 : 2 : 2 - 7 =

= 700 : 100 + 28 : 2 : 2 - 7 =

= 7 + 14 : 2 - 7 =

= 7 + 7 - 7 =

= 14 - 7 =

= 7

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Corectie: ( 8 - 8 : 8 + 43 NU 34 )

[ 22 + 3 x 3 x 3 - 4 : 4 - 50 : ( 5 + 5 ) + 7 ] : ( 8 - 8 : 8 + 43) = 1

= ( 22 + 27 - 1 - 50 : 10 + 7 ) : ( 8 - 1 + 43 ) =

=  ( 48 - 5 + 7 ) : ( 7 + 43 ) =

= ( 43 + 7 ) : 50 =

= 50 : 50 =

= 1