递等式计算 4.8x4.7+13x0.48 1.12x8.2+2.8x1.12-1.12
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=4.8×(4.7+1.3)
=4.8×6
=28.8
=1.12x(8.2+2.8-1)
=1.12X10
=11.2
=4.8×6
=28.8
=1.12x(8.2+2.8-1)
=1.12X10
=11.2
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展开全部
递等式计算 4.8x4.7+13x0.48
=0.48*10*4.7+13*0.48
=0.48*(10*4.7+13)
=0.48*(47+13)
=0.48*60
=28.8
1.12x8.2+2.8x1.12-1.12
=1.12*(8.2+2.8-1)
=1.12*(11-1)
=1.12*10
=11.2
=0.48*10*4.7+13*0.48
=0.48*(10*4.7+13)
=0.48*(47+13)
=0.48*60
=28.8
1.12x8.2+2.8x1.12-1.12
=1.12*(8.2+2.8-1)
=1.12*(11-1)
=1.12*10
=11.2
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谢谢
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