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· 33字 · 1分钟
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16.79+27.43=44.22 49÷7+62=69 71+12=83
95.79-46.38=49.41 97×36-72=3420 44×43=1892
(54÷2)+25=52 26-5=21 19.58+38.79=58.37
59×45=2655 61×11-78=593 35-23=12
99.29+6.85=106.14 87×77=6699 95.32-91.47=3.85
32×26+51=883 36÷2=18 10÷5+14=16
153×41=6273 96.4-59.04=37.36 47×(43+11)=2538
41×39+96=1695 165÷3=55 92+79×14=1198
$\frac{28}{39}$-$\frac{1}{39}$=$\frac{27}{39}$ $\frac{26}{30}$+$\frac{1}{30}$=$\frac{27}{30}$ $\frac{13}{90}$+$\frac{64}{90}$=$\frac{77}{90}$
$\frac{12}{54}$+$\frac{35}{54}$=$\frac{47}{54}$ $\frac{50}{84}$+$\frac{7}{84}$=$\frac{57}{84}$ $\frac{76}{82}$+$\frac{4}{82}$=$\frac{80}{82}$