口算: 25×4= 360÷36= 0.3÷100= 120×6= 58-58= 1000×0.013= 48+32= 84÷4= 480÷60= 3-1.4= 0
口算:25×4=360÷36=0.3÷100=120×6=58-58=1000×0.013=48+32=84÷4=480÷60=3-1.4=0÷78=2.5+0.9=8....
口算: 25×4= 360÷36= 0.3÷100= 120×6= 58-58= 1000×0.013= 48+32= 84÷4= 480÷60= 3-1.4= 0÷78= 2.5+0.9= 8.76-4.27= 45×20= 420+28= 101×28= 8×9+8= 125×7×8= 7×5÷7×5= 10-2.3-2.7=
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25×4=100, | 360÷36=10, | 0.3÷100=0.003, | 120×6=720, | 58-58=0, |
1000×0.013=13, | 48+32=80, | 84÷4=21, | 480÷60=8, | 3-1.4=1.6, |
0÷78=0, | 2.5+0.9=3.4, | 8.76-4.27=4.49, | 45×20=900, | 420+28=448, |
101×28=2828, | 8×9+8=80, | 125×7×8=7000, | 7×5÷7×5=25, | 10-2.3-2.7=5. |
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