Mathematics, 18.02.2021 01:50 Odog9458
OPERACIONES COMBINADAS CON NÚMEROS NATURALES. 1º ESO
1.- Calcula y compara los resultados a) y b), c) y d), e) y f), y saca conclusiones. ¿A qué propiedad se refiere?
a) 3x8-3x5= b) 3x(8-5)=
c) 2x7-2x5+2x6= d) 2x(7-5+6)=
e) 6x7+4x7-3x7= f) (6+4-3)x7=
2.- Calcula:
a) 6+4x3-2x5=
b) 5x3+8x4-2x6=
c) 10-10:2+15:3+4x4=
d) (3+5-4+1)x3-16:4=
e) (6+4)x(5-3+8)=
f) (3+6):3+24:(4+2)=
3.- Coloca los paréntesis que sean necasarios para obtener los resultados que se indican:
+ ⋅ − = + ⋅ − =
a) 4+2x8-6=12 b) 4+2x8-6=42
c) 4+2x8-6=8 d) 4+2x8-6=14
4.- Realiza las operaciones:
a) (4+8):3-2+(3+5)x3=
b) [6-3x(5-3)+7]x2+14=
c) 7x(9-3-4)-3x(4-3+2)+12:(8-2)=
d) (3+5):2+3-(5x2-6)-5x4=
Answers: 3
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