简便算法(4道,比较少,但是要做好) 9.64*2.7-5.64*2.7 2.46*99 0.125*5.06*8 2.5*4.4

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简便算法(4道,比较少,但是要做好)9.64*2.7-5.64*2.72.46*990.125*5.06*82.5*4.4简便算法(4道,比较少,但是要做好)9.64*2.7-5.64*2.72.46

简便算法(4道,比较少,但是要做好) 9.64*2.7-5.64*2.7 2.46*99 0.125*5.06*8 2.5*4.4
简便算法(4道,比较少,但是要做好) 9.64*2.7-5.64*2.7 2.46*99 0.125*5.06*8 2.5*4.4

简便算法(4道,比较少,但是要做好) 9.64*2.7-5.64*2.7 2.46*99 0.125*5.06*8 2.5*4.4
9.64×2.7-5.64×2.7
=(9.64-5.64)×2.7
=4×2.7
=10.8
2.46×99
=2.46×(100-1)
=2.46×100-2.46×1
=246-2.46
=243.54
0.125×5.06×8
=(0.125×8)×5.06
=1×5.06
=5.06
2.5×4.4
=2.5×4×1.1
=(2.5×4)×1.1
=10×1.1
=11