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· 24字 · 1分钟
1 2 3
56+9=65 42-6=36 19+36=55
28÷2=14 344÷8=43 70×39=2730
87÷3=29 45×17=765 66×54=3564
36+(23×94)=2198 66×6+81=477 93×(7+70)=7161
14-(65÷5)=1 87+(48÷2)=111 (60÷4)+29=44
91.75-21.74=70.01 89.95-48.74=41.21 5.91+30.11=36.02
64.43-35.22=29.21 60.94-22.96=37.98 42.42+4.52=46.94