Expressões numéricas
A) 50-4×(35÷5-3)
B) (28-18÷3)+6
C) (47-2+5) ÷ (16÷8)
D) 24÷(4×2)+17
E) 38+[7+(32÷4-5)]
F) 50+10÷[12-(2×5-3)]
G) 17+[24÷(3+1)×8]-9
H) 76+[15÷(6÷2+2)+1]
I) 4×{19+[5+(32÷4-6)] -10}
J) 60-{48-[16÷(4+4)]}
K) 4×{2×[4×9-(9÷3-2)]÷5}
L) {20+[8×(10÷2)]-15}
Soluções para a tarefa
Respondido por
17
A) 50-4×(35÷5-3) = 50-4×(7-3) = 50-4×(4) = 50-16 = 34
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B) (28-18÷3)+6 = ( 28 - 6) + 6 ==> 22+6 ==> 28
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C) (47-2+5) ÷ (16÷8) = 50 ÷ 2 ==> 25
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D) 24÷(4×2)+17 = (24÷8)+17 = 3 + 17 ==> 20
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E) 38+[7+(32÷4-5)] = 38+[7+(8-5)]=>38+[7+(8-5)] =>38+[7+3] =>38+10=>48
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F) 50+10÷[12-(2×5-3)] = 50+10÷[12-(10-3)] = 50+10÷[12-7]
= 50+10÷5 ==> 50+2 ==> 52
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G) 17+[24÷(3+1)×8]-9 = 17+[24÷4×8]-9= 17+[6×8]-9 = 17+48-9 = 56
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H) 76+[15÷(6÷2+2)+1] = 76+[15÷5+1] = 76+[3+1] = 76+4 = 80
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I) 4×{19+[5+(32÷4-6)] -10} = 4×{19+[5+(8-6)] -10} = 4×{19+[5+2] -10}
4×{19+7 -10} = 4×{26-10} = 4x16 = 64
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J) 60-{48-[16÷(4+4)]} = 60-{48-[16÷8]} = 60-{48-2} = 60-46 = 14
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K) 4×{2×[4×9-(9÷3-2)]÷5} = 4×{2×[36-(3-2)]÷5} = 4×{2×[36-1]÷5}
4×{2×35÷5} = 4×{2×7} = 4x14 = 56
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L) {20+[8×(10÷2)]-15} = {20+[8×5]-15} = {20+40-15} = 60-15 = 45
yannaandrade:
obrigada
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