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10×10-5×9-5×1+(4×3+8×6)9×7-48÷6-(10×5-5×1)=​

Răspuns :

10×10-5×9-5×1+(12+48)x9×7-48÷6-(10×5-5×1)=
= 10×10-5×9-5×1+ 60x9×7-48÷6-(10×5-5×1)
= 10×10-5×9-5×1+60x9×7-48÷6-(50-5)
= 10×10-5×9-5×1+60x9×7-48÷6-45
=100-45-5+540x7-8-45
=55-5+3780-8-45
=50+3780-8-45
=3830-8-45
=3822-45
=3777