Question

Resolva as divisões abaixo:
a) 4,78:0,2=23,9

b) 1,23:0,03=41

c) 0,8:0,08=

d) 3,6:0,005=

e) 1,44:0,12=

f) 2,36:4=

g) 3,2:0,16=

h) 0,169:0,13=

i) 6,4:0,01=

j) 8,8:0,1=

k) 4,52:0,002=

l) 12,16:0,04=

m) 0,07:0,007=

n) 3,1:6,2=

Answer 1

c)

$\frac{0.8}{0.08} = \frac{0.08 \times 10}{0.08} = 10$

d)

$\frac{3.6}{0.005} = \frac{3.6}{ \frac{5}{1000} } = \frac{3.6 \times 1000}{5} = \frac{3600}{5} = 720$

e)

$\frac{1.44}{0.12} = \frac{1.44}{ \frac{12}{100} } = \frac{1.44 \times 100}{12} = \frac{144}{12} = 12$

f)

$\frac{2.36}{4} = \frac{2.36}{4} \times \frac{100}{100} = \frac{236}{4} \times \frac{1}{100} = 59 \times \frac{1}{100} = \frac{59}{100} = 0.59$

g)

$\frac{3.2}{0.16} = \frac{3.2}{ \frac{16}{100} } = \frac{3.2 \times 100}{16} = \frac{320}{16} = \frac{160}{8} = \frac{80}{4} = 20$

h)

$\frac{0.169}{0.13} = \frac{0.169}{0.13} \times \frac{1000}{1000} = \frac{169}{130} = \frac{13 \times 13}{13 \times 10} = \frac{13}{10} = 1.3$

i)

$\frac{6.4}{0.01} = \frac{6.4}{ \frac{1}{100} } = \frac{6.4 \times 100}{1} = 640$

j)

$\frac{8.8}{0.1} = \frac{8.8}{ \frac{1}{10} } = \frac{8.8 \times 10}{1} = 88$

k)

$\frac{4.52}{0.002} = \frac{4.52}{ \frac{2}{1000} } = \frac{4.52 \times 1000}{2} = \frac{4520}{2} = 2260$

l)

$\frac{12.16}{0.04} = \frac{12.16}{ \frac{4}{100} } = \frac{12.16 \times 100}{4} = \frac{1216}{4} = \frac{608}{2} = 304$

m)

$\frac{0.07}{0.007} = \frac{0.007 \times 10}{0.007} = 10$

n)

$\frac{3.1}{6.2} = \frac{3.1}{3.1 \times 2} = \frac{1}{2} = 0.5$

Espero ter ajudado,

Apliquei várias propriedades da multiplicação e divisão, se não entenderes alguma, comenta.