Question

calculati e) 0,1(7)x2,25 f)1,3(8)x1,8. g) 1,2x3,6(1) h)1,25x4,2(6).

Answer 1

Răspuns:

$e)\frac{17 - 1}{90} \times \frac{225}{100} = \frac{16}{90} \times \frac{225}{100} = \frac{3600}{9000} = \frac{4}{10} = 0.4 \: \: \: \: \: \: \: f) \frac{138 - 13}{90} \times \frac{18}{10} = \frac{125}{90} \times \frac{18}{10 } = \frac{125}{50} = \frac{25}{10} = \frac{5}{2} = 2.5 \: \: \: \: \: \: \: g) \frac{12}{10} \times \frac{361 - 36}{90} = \frac{12}{10} \times \frac{325}{90} = \frac{3900}{900} = \frac{1300}{300 } = \frac{650}{150} = \frac{130}{30} = \frac{65}{15} = \frac{13}{3}$

h)125/100×426-42/90=125/100×384/90=48000/9000=8000/150=4000/75=800/15=

160/3

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