Question

Calcule:


a) (-4,5 ) x (0,2)=

b) 3/8: 2/3=​

Answer 1

Resposta:

a) 4+10+8= 22

b) 5-9+1= -4+1= -3

c) -8-2+3= -10+3= -7

d) -15+8-7= -7-7= -14

e) 24+6-12= 30-12= 18

f) 18-3-21= 15-21= -6

g) -14-3-6-1= -17-5=-22

h) -4+5+6+3-9= 1+6+3-9= 10-9=1

i) -1+2-4-6-3-8= 1-4-6-3-8= -3-6-3-8=- 20

j) 6-8-3-7-5-1+0-2= -2-3-7-5+0-2= -17+0-2= -17-2=-19

k) 2+9-10-6+14=1+20=???? /o que seria o sinal (=) nessa expressão?

l) -13-1-2-8+4-6-10=  -24+4-6-10= -20-6-10=-36

Explicação passo-a-passo:

Answer 2

Oiê, td bom?

$a) = ( - 4.5) \times (0.2) = - 0.9 \\ \\ b) = \frac{3}{8} \div \frac{2}{3} = \\ \frac{3}{8} \times ( \frac{3}{2} ) = \frac{3 \times 3}{8 \times 2} = \frac{9}{16} = 0.5625$