Question

f- {45+120-[35+(25+6.8)-18+5.3]}

d- [(25+5x3)-8+5.3]

c- -1 +6 x(7-4÷2)

b- [2+3x4] ÷7+7


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Answer 1

Explicação passo-a-passo:

f) {45+120-[35+(25+6•8)-18+5.3]}

{45+120-[35+(25+48)-18+15]

{45+120-[35+(73)-3=

45+120-[35+70]=

165-105=60

d) [(25+5•3]-8+5.3=

25+15-8+15=

40-8+15=

, 32+15=47

c) -1+6x(7-4÷2)=

-1+6x(7-2)=

-1+6x5=

-1+30=29

b)[2+3x4]÷7+7=

[2+12]÷7+7=

14÷7+7=

2+7=9