Question

1.- 20÷5-6×(10+5)+12÷3 =

2. -2{-4(5-3)-2[3-2]-8(-4+6)}

3. -4+3(-10+7)-(-3-3)-16

4. -4-3{-2(6-4)-[3(2-1)]}

5. 16÷(-4)-6×(-3)+3×(2-4)

ayuda por favor
las respuestas con su desarrollo​

Answer 1

1. 20÷5-6×(10+5)+12÷3 =

4-6×15+4 = 4-90+4 = 90

2. -2{-4(5-3)-2[3-2]-8(-4+6)}

-2{-4×2-2×1-8×2} = -2{-8-2-16} = -2{-26} = 52

3. -4+3(-10+7)-(-3-3)-16

-4+3(-3)-(-6)-16 = -4-9+6-16 = -13+6-16 = - 23

4. -4-3{-2(6-4)-[3(2-1)]}

-4-3{-2×2-[3×1]} = -4-3{-4-3} = -4-3{-7} = -4+21 = 17

5. 16÷(-4)-6×(-3)+3×(2-4)

-4+18+3×(-2) = 14-6 = 12