(2.68-3.04)-(1.96-7.32)8.6*5.7+4.3*4.3*29.9*10.1-9.9*0.1

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(2.68-3.04)-(1.96-7.32)8.6*5.7+4.3*4.3*29.9*10.1-9.9*0.1
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(2.68-3.04)-(1.96-7.32)8.6*5.7+4.3*4.3*29.9*10.1-9.9*0.1
(2.68-3.04)-(1.96-7.32)
8.6*5.7+4.3*4.3*2
9.9*10.1-9.9*0.1

(2.68-3.04)-(1.96-7.32)8.6*5.7+4.3*4.3*29.9*10.1-9.9*0.1
1、原式=2.68-3.04-1.96+7.32
=2.68+7.32-(3.04+1.96)
=10-5
=5
2、原式=8.6×5.7+4.3×8.6
=8.6×(5.7+4.3)
=8.6×10
=86
3、原式=9.9×(10.1-0.1)
=9.9×10
=99

什么,是要算出来么

(2.68-3.04)-(1.96-7.32)=2.68+7.32-3.04-1.96=10-5=5
8.6*5.7+4.3*4.3*2=8.6(5.7+4.3)=86
9.9*10.1-9.9*0.1=9.9(10.1-0.1)=99

1. 原式=(2.68+7.32)-(1.96+3.04)=5
2. 原式=8.6*5.7+8.6*4.3=8.6*(5.7+4.3)=8.6*10=86
3. 原式=9.9*(10.1-0.1)=9.9*10=99