Respuesta: 60)-6 61)-7 62)-26 63)-26 64)5 65)-34 66)18
67)34 68)67 69)17 70) 37
Explicación paso a paso:
60) -[3-(2-(-3))] - [4-(-5-(2-5)-2)]
Primero se hacen las operaciones mas internas: (2-(-3)) y (2-5).
⇒ -[3-(2 + 3)] - [4-(-5-(-3)-2)] = -[3-5] - [4-(-5+3-2)]
=-[-2] - [4 -(-4)]
= 2 - [4 + 4]
= 2 - 8
= -6
61) 4-[2.(3-5)-(5-2).(-7+4 ÷ 2)] = 4-[2.(-2)-(3).(-7+4 ÷ 2)]
= 4-[-4 - (3)(-7 + 2)
= 4-[-4 - 3(-5)]
=4 - [-4+15]
=4 - [11]
= -7
62) (7-5).[3-2-4 ÷ 2-3.(6-2-8÷4)] = 2.[3-2-4 ÷ 2-3.(6-2-2)]
= 2.[3-2- 2- 3.(4)]
= 2.[3-2-2-12]
= 2.[-13]
= -26
63) 4-3.[-2+5-3.(-2-3÷3)-10÷2+3] =4-3.[-2+5-3.(-2-1)-10÷2+3]
= 4-3[-2+5-3.(-3) - 5 + 3]
= 4 -3[3 + 9 - 5 + 3]
= 4 -3[10]
= 4 - 30
= -26
64) 10 ÷[(3-5).(2-4)+10÷(-3-2)] = 10 ÷ [(-2).(-2) + 10÷(-5)]
= 10 ÷ [ 4 + (-2) ]
= 10 ÷ [4 - 2]
= 10 ÷ 2
= 5
65) 8 ÷ (3-5) - 2.[-3 .(-4) -6÷(1-3)] = 8 ÷ (3-5) - 2.[-3 .(-4) -6÷(1-3)]
= 8 ÷ (-2) - 2.[ 12 - 6÷(-2)]
= 8 ÷ (-2) - 2.[ 12 + 3]
= -4 - 2. [15]
= -4 - 30
= -34
66) 2 . 3² - 4² ÷ 2 + 3² - (-1)^4 = 2 . 3² - 4² ÷ 2 + 3² - 1
= 2.9 - 16÷2 + 9 - 1
= 18 - 8 + 9 - 1
= 18
67) 20 + [3.4 - (17 - 3 . 2²)]. 2 = 20 + [3.4 - (17 - 3 . 4)]. 2
= 20 + [3.4 - (17 - 12)]. 2
= 20 + [3.4 - 5]. 2
= 20 + [12 - 5]. 2
= 20 + 7.2
= 20 + 14
= 34
68) 10 + 8. 3² - 5.(27 - 2³ . 3) = 10 + 8. 3² - 5.(27 - 8 . 3)
= 10 + 8 . 3² - 5(27 - 24)
= 10 + 8 . 3² - 5 . 3
= 10 + 72 - 15
= 82 - 15
= 67
69) 19-[2.(8-(29 - 3. 2³))-4] = 19 -[2.(8-(29 - 3.8))-4]
= 19-[2.(8-5) - 4]
= 19-[2.3 - 4]
= 19-[6- 4]
= 19 - 2
= 17
70) 12-[2² - 10²÷5] + (-6)²÷4 = 12-[4 - 100÷5] + 36÷4
= 12-[4 - 20] + 9
= 12-[-16] + 9
= 12+16+9
= 37
