口算:25×4= 58-58= 480÷60= 8.76-4.27= 8×9+8= 360÷36= 1000×0.013= 3-1.4= 45×20= 125×7×8= 0.
口算:25×4=58-58=480÷60=8.76-4.27=8×9+8=360÷36=1000×0.013=3-1.4=45×20=125×7×8=0.3÷100=48...
口算:25×4= 58-58= 480÷60= 8.76-4.27= 8×9+8= 360÷36= 1000×0.013= 3-1.4= 45×20= 125×7×8= 0.3÷100= 48+32= 0÷78= 420+28= 7×5÷7×5= 120×6= 84÷4= 2.5+0.9= 101×28= 10-2.3-2.7=
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