Question

1-calcule o valor das expressões numéricas ​

Answer 1

Explicação passo-a-passo:

5+(7-2)-(4+3)

5+5-(4+3)

5+5-7

10-7

3

-15+[(-12)-(+4)]-(-7-4)

-15+[(-12-4)]-(-7-4)

-15+[-16]-(-7-4)

-15+[-16]-(-11)

-15+[-16]+11

-15-16+11

-31+11

-20

45-{51+[(-3)-(+8)]}

45-{51+[-3-8]}

45-{51+[-11]}

45-{51-11}

45-40

5

(4-8)-{[7+(+2-4)-(-5-13)]-1}

-4-{[7+(+2-4)-(-5-13)]-1}

-4-{[7+(-2)-(-5-13)]-1}

-4-{[7+(-2)-(-18)]-1}

-4-{[7-2-(-18)]-1}

-4-{[7-2+18]-1}

-4-{[9+18]-1}

-4-{27-1}

-4-26

-30