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· 24字 · 1分钟
1 2 3
72-24=48 30+25=55 56-4=52
400÷8=50 118×89=10502 20×52=1040
56×40=2240 42×141=5922 390÷5=78
18+83×44=3670 52+(34÷2)=69 3÷3+45=46
48+(42÷2)=69 41×(78+31)=4469 32+(20÷4)=37
99.82-86.06=13.76 78.37+17.94=96.31 24.49+73.1=97.59
23.61+75.86=99.47 4.21+89.51=93.72 64.1-57.28=6.82