Question

resolva as seguintes expressões numéricas a) 24x3 - 44 + 21
b) 3.456 - 321 - 102 : 2
c) 5.550 : 5 + 234 - 100
d) 847 - 452 x 11 + 3

Answer 1

A)72x-23

B)996

C)634

D)850-4972x

explicação passo a passo

A)24x+3-44+21

24x×+3-44+21

24x×3

72x

24x×3-44+21

72x-44+21

-44+21

-(44-21)

-23

72x-44+21

72x-23

resposta

72x-23

B)3.456-321-102:2

3×456-321-102÷2

1368-321-102÷2

3×456-321-102÷2

-102÷2

-(102÷2)

-51

3×456-321-102÷2

1368-371-51

1368-372

996

1368-321-51

996

resposta

996

C)5.500:5+234-100

5×500÷5+234-100

1×500+234-100

500+234-100

734+100

634

500+234-100

634

resposta

634

D)847-452x11+3

847-452x×11+3

-452x×11

-(452×11)x

-4972x

847-452x×11+3

847-4972x+3

850-4972x

resposta

850-4972x