25070210103914

· 33字 · 1分钟
1 2 3
58＋30＝88 38＋97×22＝2172 67.81－48.04＝19.77
35÷7＝5 42÷3＝14 304÷4＝76
2＋13×52＝678 83.16－17.5＝65.66 82＋(12÷4)＝85
60×98＝5880 26＋76×40＝3066 53×11－20＝563
80.48－38.31＝42.17 41＋58＝99 70×27－56＝1834
25×45＝1125 71.58－7.68＝63.9 95－45＝50
74×98－63＝7189 (26＋13)×20＝780 40×64＝2560
(47＋5)×19＝988 42.65＋24.55＝67.2 56.92＋57.63＝114.55
$\frac{45}{97}$＋$\frac{5}{97}$＝$\frac{50}{97}$ $\frac{25}{33}$＋$\frac{7}{33}$＝$\frac{32}{33}$ $\frac{35}{45}$－$\frac{8}{45}$＝$\frac{27}{45}$
$\frac{53}{74}$＋$\frac{15}{74}$＝$\frac{68}{74}$ $\frac{17}{28}$－$\frac{11}{28}$＝$\frac{6}{28}$ $\frac{46}{47}$－$\frac{1}{47}$＝$\frac{45}{47}$
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