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