Question

4 Efectuează. a) 1 000 - 25 x 25 + 2 x 35:5 b) 2 015 + 80 : 4 x 75 - 12:1 5x (50 x 20 - 12 56) - 800 x 2 c) d) 150 x (1 015 - 975) – (975 - 88:8) Iron​

Answer 1

Răspuns:

a) 389

b) 3503

c) 40

d) 5036

Explicație pas cu pas:

1000 - 25 × 25 + 2 × 35 : 5 =

= 1000 - 625 + 70 : 5 =

= 1000 - 625 + 14 =

= 375 + 14 =

= 389

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2015 + 80 : 4 × 75 - 12 : 1 =

= 2015 + 20 × 75 - 12 =

= 2015 + 1500 - 12 =

= 3515 - 12 =

= 3503

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5 × ( 50 × 20 - 12 × 56 ) - 800 × 2 =

= 5 × ( 1000 - 672 ) - 800 × 2 =

= 5 × 328 - 800 × 2 =

= 1640 - 800 × 2 =

= 1640 - 1600 =

= 40

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150 × ( 1015 - 975 ) - ( 975 - 88 : 8 ) =

= 150 × 40 - ( 975 - 11 ) =

= 150 × 40 - 964 =

= 6000 - 964 =

= 5036