Question

40 Calculează: 1+2x5-(8x5:10+5-63:9) x 4-(42:7-32:8) =​

Answer 1

Răspuns:

$1 + 2 \times 5 - (8 \times 5 \div 10 + 5 - 63 \div 9) \times 4 - (42 \div 7 - 32 \div 8) = \\ = 1 + 10 - (40 \div 10 + 5 - 7) \times 4 - (6 - 4) = \\ = 11 - (4 + 5 - 7) \times 4 - 2 = \\ = 11 - (9 - 7) \times 4 - 2 = \\ = 11 - 2 \times 4 - 2 = \\ = 11 - 8 - 2 = 3 - 2 = 1$

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Answer 2

1+10-(40:10+5-7)×4-(6-4)=

=11-(4+5-7)×4-2=

=11-(9-7)×4-2=

=11-2×4-2=

=11-8-2=

=3-2= 1

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