①0.46+\(\frac{2}{5}\)×4
②\(\frac{1}{4}\)÷1.02
③(\(\frac{17}{4}\))
★希望★完全解答★
①0.46+\(\frac{2}{5}\)×4
②\(\frac{1}{4}\)÷1.02
③(\(\frac{17}{4}\))
★希望★完全解答★
①
0.46+\(\frac{2}{5}\)×4 =0.46+0.4×4
=0.46+1.6
=2.06……(答)
②
\(\frac{1}{4}\)÷1.02 =0.25÷1.02
=25÷102
=25/102……(答)
③
\(\frac{17}{4}\)=17÷4=4.25……(答)