Question

a)2 x10: 4= b) 18x3+16:4= c) 30- 4x 5 +2= d) 2x3 + 2 x 12= e) 2x (3 +12)= f) (16 : 4 +5 ) + (12: 3 x 3 ) g) ( 4x9 - 4 ) : 8 = h ) 3 x [5 + 2 x ( 12 -10) - 2x3] i) 25+ { 5x [8 +( 42: 7) - 12]}=

Answer 1

Resposta:

a) 20÷4=5

b) 54+4=58

c) 30-20+2=10+2=12

d) 6+2×12=6+24=30

e)2x15=30

f)(4+5)+(4x3)=9+12=21

g)(36-4)÷8=32÷8=4

h)3x [5+2x2-6]=3x [5+4-6]=3x [9-6]=3x3=9

i)25+{5x [8+6-12]}=25+{5x [14-12]}=25+{5x2}=25+10=35

Espero ter ajudado.